Pictograms and ideograms

Pictograms and ideograms examines the moment when visual communication becomes repeatable, conventional and compressible.

Rock and cave art established that a durable image could outlive its maker. Pictograms and related conventional signs introduced a further transformation: a comparatively small, reusable mark could stand for a recurring category, object, action, place, relation, institution, instruction or concept.

The topic’s central claim is:

Conventional visual signs reduced the need to recreate a full scene by allowing communities to reuse compact marks whose meanings were socially learned.

A drawing of one particular animal can depict an event or presence. A recurrent animal-shaped sign can become a category label, clan emblem, ritual marker, ownership sign, route indicator or mnemonic prompt. The crucial transition is not simply from realistic pictures to abstract shapes. It is from one-off depiction to repeatable sign use.

This transition created several important capabilities:

• visual compression;
• faster recognition;
• repeatable copying;
• communication across some language barriers;
• categorisation;
• navigation and wayfinding;
• public warnings;
• ownership and identity marking;
• administrative notation;
• mnemonic support;
• combination of signs into larger structures;
• eventual representation of words, morphemes and sounds.

However, the familiar phrase “pictograms and ideograms” conceals difficult terminology.

A pictogram usually has a recognisable visual resemblance to what it represents. An aeroplane symbol at an airport resembles an aeroplane. A flame symbol resembles fire. Yet resemblance alone does not guarantee meaning. The same flame can indicate:

• fire;
• heat;
• flammability;
• energy;
• popularity;
• urgency;
• a digital “streak”;
• figurative excellence.

Interpretation depends on context and convention.

The term ideogram is even more troublesome. It suggests that a graphic sign represents a pure idea directly, independently of language. Some limited systems can indeed communicate meanings without encoding a particular spoken sentence. Traffic signs, mathematical operators, maps, diagrams, public-information symbols and specialised semantic codes demonstrate that semasiographic communication is possible.

But the idea of a fully universal general-purpose picture language repeatedly encounters difficulty. Abstract meanings are hard to depict. Sign inventories expand. combinations require rules. cultural assumptions leak into design. unfamiliar signs need instruction. ambiguity grows rapidly when context disappears.

For this reason, modern writing-system scholarship generally distinguishes:

• semasiography, where visible signs convey meaning without systematically representing a particular language; and
• glottography, where visible signs represent units of language.

The transition to writing is not completed merely by drawing increasingly simplified pictures. It occurs when signs become capable of systematically representing language. One decisive mechanism is the rebus principle, where a picture is used for the sound of its name rather than for the depicted object. This allows a finite set of visible signs to represent words and grammatical material that cannot be pictured directly.

Early Mesopotamian proto-cuneiform around 3300 BCE emerged from numerical, administrative and iconographic notation. Its signs included pictorial and abstract forms, but the system developed into a script capable of representing languages through mixtures of logograms, syllabic values and determinatives [4][5][6].

Ancient Egyptian hieroglyphic writing likewise cannot be understood as a collection of picture ideas. Its visually pictorial signs could function as:

• logograms;
• phonograms;
• determinatives;
• classifiers;
• components of rebus-like spellings.

Chinese characters are also routinely but misleadingly described as ideograms. Most characters participate in a writing system that represents linguistic units, frequently combining semantic and phonetic information. They do not permit readers who know no Chinese language to extract complex propositions by contemplating pictures.

The history of conventional visual signs is therefore not a simple staircase:

picture → ideogram → writing

A better model is a branching field:

• pictures become conventional symbols;
• marks become ownership or identity signs;
• visual codes support memory and ritual;
• tallies specialise in quantity;
• tokens specialise in accounting;
• maps and diagrams organise spatial and relational information;
• public pictograms support navigation;
• semantic systems support augmentative communication;
• rebus and phonetic mechanisms help produce writing;
• emoji reintroduce pictorial signs inside digital text.

The research notes’s principal verdict is that Pictograms and ideograms should remain a Core topic, but it should be renamed analytically.

Recommended title:

Conventional Visual Signs and Semasiographic Systems

The familiar title Pictograms and Ideograms should remain as a public-facing alias because it is accessible and historically recognisable.

The big idea

| Question | Verdict | |---|---| | Does the topic belong in the map? | Yes, as a Core transition | | Is the current name adequate? | Accessible but conceptually unstable | | Recommended analytical name | Conventional Visual Signs and Semasiographic Systems | | Primary contribution | Compresses recurring meanings into reusable visible signs | | Main successor advantage | Writing systematically represents language, allowing greater precision and generativity | | Main caution | Pictorial appearance does not guarantee universality or direct access to ideas | | Taxonomy pressure | The Master Specification needs a clearer distinction between semasiographic notation and language-representing writing |

| Field | Provisional value | |---|---| Pictograms and ideograms | | Register name | Pictograms and ideograms | | Recommended analytical name | Conventional visual signs and semasiographic systems | | Topic type | Visual encoding method and conventional sign system | | Primary category | Encoding and expression | | Secondary categories | Storage; interpretation; discovery; governance; interaction; cultural memory | | Approximate emergence | Prehistoric sign use; recurrent conventional corpora securely attested by the Neolithic; proto-writing by the late fourth millennium BCE | | Main problem addressed | Need to recreate complete scenes or rely on live explanation for every recurring meaning | | Key predecessors | Gesture; rock art; visual perception; shared symbolic convention | | Key successors | Tallies; tokens; numerical notation; writing systems; maps; diagrams; public icons; interface symbols | | Current status | Researched and provisionally synthesised |

For this project, Pictograms and ideograms is defined as:

A socially conventional system in which repeatable visible marks communicate recurring meanings without necessarily representing a complete spoken or signed utterance.

This definition has five parts.

3.1 Socially conventional

A mark becomes a sign when a community treats it as standing for something.

The relationship can begin with resemblance, but stable use depends on convention.

3.2 Repeatable

The mark can be produced again and recognised as an instance of the same sign type.

Variation may occur, but users perceive continuity.

3.3 Visible

The sign is apprehended primarily through vision, although it may be:

• engraved;
• painted;
• printed;
• woven;
• carved;
• traced in sand;
• displayed on screens;
• combined with gesture or speech.

3.4 Recurring meaning

The sign is not merely a unique composition. It can be reused for a class of objects, actions, locations, relations or concepts.

3.5 Not necessarily language-representing

A sign can communicate without specifying an exact sentence.

A crossed-out cigarette may communicate prohibition without encoding a particular sequence such as:

Smoking is forbidden here.

Different viewers may verbalise the same sign differently while responding similarly.

4.1 It creates visual compression

A full scene may require many figures and contextual details.

A conventional sign can reduce that scene to one compact mark.

4.2 It creates category-level communication

A realistic image may depict one particular horse.

A conventional horse sign can represent:

• horses generally;
• a stable;
• transport;
• cavalry;
• a clan;
• ownership;
• a place name;
• the sound of the word for horse.

4.3 It makes copying cheaper

Simplified signs can be repeated more quickly than elaborate images.

4.4 It supports recognition at speed

Public signs, interface icons and hazard symbols exploit rapid visual processing.

4.5 It separates sign form from individual artistic performance

The identity of the sign matters more than the personal style of the maker.

4.6 It prepares the ground for combinatorial systems

Once signs can be reused, they can be:

• listed;
• grouped;
• ordered;
• modified;
• negated;
• repeated;
• classified;
• combined.

4.7 It exposes the limits of pictures

As sign systems become more ambitious, they reveal the difficulty of representing:

• tense;
• negation;
• conditionality;
• abstract relations;
• proper names;
• grammatical roles;
• subtle distinctions;
• unfamiliar concepts.

Those pressures help explain the historical importance of phonetic and language-based writing.

5.1 Sign

Anything that stands for something to an interpreter within a system of use.

5.2 Symbol

A sign whose meaning depends substantially on social convention.

In everyday design language, symbol is often used broadly for almost any graphic sign.

5.3 Icon

A sign whose form resembles or structurally maps onto its referent.

Resemblance is graded, not absolute.

5.4 Index

A sign connected to its referent through physical or causal association.

Smoke can index fire. Footprints can index passage.

5.5 Pictogram

A simplified pictorial sign representing an object, activity, location, condition or instruction.

A pictogram usually retains visible resemblance to its referent.

5.6 Pictograph

A picture used to convey information.

The term is broad and is also used for painted rock images. In this project, pictogram is preferred when repeatable sign use is central.

5.7 Iconogram

A conventional graphic sign whose meaning relies partly on iconic resemblance.

The term is useful but less common outside specialist writing.

5.8 Ideogram

Traditionally, a sign said to represent an idea or concept directly.

The term should be used cautiously because:

• concepts are culturally structured;
• abstract meaning usually requires learned convention;
• many signs called ideograms actually represent words or morphemes;
• visually similar signs may support different verbal interpretations;
• general-purpose ideography is difficult to sustain without language-like structure.

5.9 Semasiography

A visible notation system that communicates meaning without systematically representing a particular language.

Examples may include:

• mathematical notation;
• musical notation;
• maps;
• diagrams;
• some public signs;
• some mnemonic systems;
• selected symbolic traditions.

5.10 Glottography

A writing system that represents units of language.

These units may include:

• morphemes;
• words;
• syllables;
• consonants;
• phonemes;
• combinations of these.

5.11 Logogram

A written sign representing a word or morpheme.

A logogram belongs to a language-representing system, even when its shape began as a picture.

5.12 Phonogram

A sign representing sound.

5.13 Determinative

A sign that helps identify the semantic category of a written word without necessarily being pronounced.

5.14 Classifier

A sign indicating a semantic class or interpretive category.

5.15 Rebus principle

The use of a sign for the sound of its name rather than for its pictured meaning.

A picture of an eye can stand for the sound I in English.

5.16 Proto-writing

A structured sign system used to record limited information but not yet capable of representing language with the productive range associated with full writing.

5.17 Emblem

A conventional visual form representing a group, office, institution, belief or identity.

5.18 Glyph

A visible form used to display a sign or character.

5.19 Sign type and token

A type is the abstract sign identity.

A token is one particular instance of that sign.

5.20 Codebook

The shared association between signs, meanings and rules of combination.

The codebook may be:

• formally documented;
• orally taught;
• restricted to initiates;
• embedded in repeated practice;
• partially inferred through context.

6.1 Boundary with Rock and cave art: Rock and Cave Art

Rock art is defined primarily by:

• durable image-making on natural stone;
• place;
• composition;
• landscape;
• repeated visitation.

Pictograms and ideograms begins when repeated visual forms operate as conventional sign types.

The same physical image may participate in both topics.

A painted animal can be:

• an image within a narrative scene;
• a recurring clan sign;
• a territorial marker;
• a mnemonic pictogram.

The boundary is functional rather than material.

6.2 Boundary with Tally marks and notches: Tally Marks and Notches

Tallies specialise in:

• number;
• sequence;
• recurrence;
• accounting.

They may use repeated strokes rather than pictorial resemblance.

Tally marks and notches should remain separate because numerical externalisation creates a distinct processing system.

6.3 Boundary with Tokens and accounting objects: Tokens and Accounting Objects

Tokens are manipulable objects whose:

• shape;
• number;
• grouping;
• enclosure

can represent quantities or commodities.

They are more than drawn pictograms because physical manipulation contributes to the information system.

6.4 Boundary with Numerical notation: Numerical Notation

Numerical notation represents quantities through conventional signs and place-value or other formal rules.

It belongs to the broader family of conventional visual signs but deserves its own topic due to its computational power.

6.5 Boundary with Writing systems: Writing Systems

Writing systematically represents language.

A sign system crosses into writing when users can encode linguistic expressions with sufficient productivity and stability, rather than merely indicating selected concepts or situations.

6.6 Boundary with maps and diagrams

Maps and diagrams represent:

• spatial relations;
• processes;
• quantities;
• causal structures;
• logical relations.

They are semasiographic descendants that should receive separate topics or dossiers because relational layout becomes part of the grammar.

6.7 Boundary with logos and branding

A logo identifies an institution or product.

It is a conventional visual sign, but the full history of identity systems, seals, heraldry and branding would overwhelm this research notes.

6.8 Boundary with emoji

Emoji are modern pictographs used inline with text.

They belong here as a continuing branch, but they do not constitute the historical origin of the topic.

6.9 Boundary with sign languages

Natural sign languages are full human languages expressed through visual-gestural modalities.

They are not pictogram systems.

Treating them as picture languages would be a category error.

7.1 Participant structure

Conventional visual signs can support:

• one-to-one communication;
• one-to-many public communication;
• many-to-many community use;
• institution-to-public instruction;
• human-to-machine interaction;
• machine-to-human notification;
• machine-to-machine labelling interpreted by humans.

7.2 Time relationship

Usually asynchronous.

A sign can remain after the maker leaves.

7.3 Spatial relationship

The sign can be:

• fixed to place;
• portable;
• worn on the body;
• attached to an object;
• printed;
• displayed digitally;
• transmitted through networks.

7.4 Persistence

Ranges from seconds to millennia.

Examples:

• sand drawing;
• chalk mark;
• painted sign;
• carved emblem;
• printed label;
• digital icon.

7.5 Direction

Usually unidirectional, but sign systems can support interaction when users:

• select symbols;
• arrange them;
• respond with symbols;
• modify shared diagrams;
• use augmentative communication boards;
• combine emoji in dialogue.

7.6 Publicness

Signs can be:

• openly public;
• occupational;
• ritual;
• secret;
• restricted to initiates;
• institutionally controlled.

7.7 Addressability

Some signs address everyone in a place.

Others identify:

• one person;
• one group;
• one property;
• one route;
• one category of authorised reader.

8.1 Source

An individual, group, institution, specialist, designer or governing authority.

8.2 Intended meaning

The information the source wants recipients to infer.

8.3 Sign selection

The source chooses an established sign or creates a new candidate.

8.4 Encoding

Meaning is mapped onto:

• resemblance;
• convention;
• spatial relation;
• colour;
• shape;
• orientation;
• repetition;
• combination;
• enclosure;
• negation.

8.5 Production

The sign is:

• drawn;
• carved;
• painted;
• printed;
• woven;
• stamped;
• displayed;
• selected from a digital inventory.

8.6 Signal

The visible form.

8.7 Channel

The physical or digital environment in which the sign appears.

8.8 Receiver

A viewer with some combination of:

• visual ability;
• contextual knowledge;
• cultural familiarity;
• training;
• expectation;
• motivation.

8.9 Recognition

The viewer identifies the graphic form.

8.10 Decoding

The viewer maps form to a possible meaning.

8.11 Pragmatic interpretation

The viewer decides what the sign means here and now.

8.12 Response

The viewer may:

• navigate;
• stop;
• enter;
• avoid danger;
• identify a group;
• retrieve a story;
• operate a machine;
• answer with another sign;
• ignore or challenge the instruction.

8.13 Feedback

Feedback can occur through:

• observed compliance;
• error reports;
• comprehension testing;
• conversational clarification;
• redesign;
• standard revision;
• social reinterpretation.

8.14 Noise

Visual noise

• poor contrast;
• clutter;
• distance;
• small size;
• weathering;
• bad lighting;
• damaged displays.

Semantic noise

• ambiguous referent;
• unfamiliar convention;
• excessive abstraction;
• multiple plausible meanings.

Cultural noise

• local symbolism;
• conflicting gestures;
• religious or political associations;
• culturally specific objects.

System noise

• inconsistent sign variants;
• poor standardisation;
• platform-dependent rendering;
• duplicate meanings.

Adversarial noise

• forged marks;
• counterfeit emblems;
• deceptive interface icons;
• propaganda;
• deliberate vandalism;
• hostile recontextualisation.

9.1 Resemblance

A sign may resemble:

• shape;
• outline;
• motion;
• spatial arrangement;
• functional part;
• typical posture.

9.2 Simplification

Details are removed to improve:

• speed;
• recognisability;
• reproducibility;
• scale flexibility.

9.3 Exaggeration

Diagnostic features may be enlarged or emphasised.

9.4 Standard viewpoint

Objects are often depicted from the angle that makes them easiest to identify.

9.5 Silhouette

High-contrast outlines improve rapid recognition.

9.6 Metonymy

A part stands for a whole.

A knife and fork can represent food or a restaurant.

9.7 Metaphor

A physical image represents an abstract relation.

A light bulb may represent an idea.

9.8 Convention

A red circle with a diagonal slash indicates prohibition in many modern sign systems.

The slash does not resemble the concept forbidden. Users learn the rule.

9.9 Colour coding

Colour can indicate:

• danger;
• permission;
• category;
• identity;
• priority;
• status.

Colour meaning is culturally and institutionally regulated.

9.10 Shape coding

Triangles, circles, rectangles and diamonds can carry conventional functions.

9.11 Orientation

Direction can communicate:

• movement;
• route;
• increase;
• decrease;
• sequence;
• opposition.

9.12 Enclosure

A border or container can identify a sign as belonging to a system.

9.13 Negation

A base pictogram can be modified through:

• crossing;
• slashing;
• cancellation mark;
• reversal;
• colour change.

9.14 Repetition

Repeated signs can indicate:

• quantity;
• intensity;
• plurality;
• duration;
• distribution.

9.15 Combination

Signs can form compounds.

However, combinations require rules and shared expectations.

9.16 Spatial grammar

Position may indicate:

• agent;
• destination;
• ownership;
• hierarchy;
• sequence;
• causality;
• containment.

At this point the system begins behaving less like a bag of icons and more like a notation.

10.1 Iconicity is not binary

Signs range from highly pictorial to highly abstract.

10.2 Recognition is not interpretation

A viewer may recognise a flame but not know whether it means:

• fire exit;
• flammable material;
• heating;
• cooking;
• popularity;
• emotional intensity.

10.3 Familiarity can defeat poor resemblance

A frequently encountered abstract sign can become easier to understand than a novel realistic picture.

10.4 Resemblance is culturally filtered

People learn which features count as representative.

10.5 Iconicity can scaffold learning

Research on symbol learning shows that iconic resemblance can help learners map signs to referents, especially early in acquisition [24].

10.6 Convention supports efficiency

Once learnt, a simplified sign can be:

• faster to draw;
• faster to scan;
• easier to standardise;
• easier to combine.

10.7 Convention creates exclusion

People outside the code community may see only decoration or an unintelligible mark.

10.8 The visual-universal myth

A picture can reduce language dependence without eliminating:

• culture;
• context;
• training;
• perception;
• prior knowledge;
• institutional convention.

Public-information standards therefore test comprehension rather than assuming that a designer’s good intentions have blessed the icon with telepathy [19][20].

11.1 The direct-idea claim

The strongest interpretation of ideography proposes:

graphic form → concept

without necessary mediation by language.

Limited semantic codes can approximate this for restricted domains.

11.2 The vocabulary problem

General communication requires signs for:

• objects;
• actions;
• qualities;
• relations;
• tense;
• negation;
• modality;
• names;
• logical structure.

The inventory expands quickly.

11.3 The abstraction problem

How should a picture directly represent:

• justice;
• despite;
• perhaps;
• unless;
• yesterday;
• obligation;
• causation;
• irony?

Metaphors help, but metaphors themselves require convention.

11.4 The syntax problem

A set of signs needs rules for interpreting combinations.

11.5 The interpretation problem

Different people verbalise and understand the same image differently.

11.6 The standardisation problem

A general-purpose visual code needs:

• authorised forms;
• dictionaries;
• teaching;
• governance;
• revision procedures.

It begins acquiring language-like organisations.

11.7 The speech shadow

Even meaning-based signs are often named, explained, remembered and combined through language.

11.8 Scholarly caution

Olivier Morin defines an ideography as a general-purpose code of pictures that does not encode language and asks why such systems are rare despite their apparent appeal [1].

The rarity is instructive.

Pictorial codes are powerful for:

• bounded domains;
• repeated public tasks;
• known environments;
• supplementary communication;
• mnemonic support.

They struggle to replace natural language for unrestricted communication.

11.9 Recommended project usage

Use ideogram only when:

• discussing historical terminology;
• reporting a source’s classification;
• describing a bounded meaning-based sign system;
• explicitly acknowledging the term’s limitations.

Prefer:

• conventional visual sign;
• semantic graphic;
• semasiographic sign;
• logogram;
• classifier;
• pictogram;
• emblem

when those labels are more precise.

12.1 No recoverable invention date

Humans probably used conventional marks on:

• bodies;
• soil;
• wood;
• fibre;
• skin;
• perishable containers

long before durable examples survive.

12.2 Recurring prehistoric motifs

Geometric and figurative motifs recur in rock art and portable objects.

Recurrence may indicate convention, but archaeologists cannot automatically recover the code.

12.3 Neolithic sign use

Agriculture, settlement, storage, craft specialisation and exchange increased demand for:

• property marking;
• accounting;
• identity signs;
• ritual notation;
• classification.

12.4 Jiahu signs

Signs incised on tortoise shell and bone at Jiahu in Henan date to the seventh millennium BCE.

The original researchers did not establish them as a full writing system. They interpreted them as evidence of sign use that may belong to a much longer history preceding Chinese writing [8].

12.5 Vinča and related Balkan signs

Repeated signs appear on Neolithic objects in southeastern Europe.

Their functions remain disputed.

Possible interpretations include:

• ownership marks;
• potter marks;
• ritual signs;
• decorative motifs;
• limited symbolic notation.

The corpus should not be promoted confidently as the world’s earliest writing without stronger evidence.

12.6 Near Eastern tokens and notation

From the eighth millennium BCE, clay tokens were used in accounting contexts.

Because tokens are manipulable three-dimensional objects, they receive a separate topic, Tokens and accounting objects.

Their eventual relationship to impressed and drawn signs demonstrates an important conversion:

object used as a sign → impression of object → drawn sign representing category or quantity

12.7 Proto-cuneiform

Around 3300 BCE, administrative tablets at Uruk used numerical and non-numerical signs.

The earliest system was closely tied to:

• commodities;
• labour;
• organisations;
• rations;
• accounting.

Some signs were pictorial. Others were abstract.

The system later developed into cuneiform writing capable of representing Sumerian and other languages [4][5][6][7].

12.8 Egyptian hieroglyphic writing

Early Egyptian writing used visually pictorial signs, but those signs performed multiple linguistic functions.

The pictures did not merely convey free-floating ideas.

12.9 Chinese writing

The securely attested oracle-bone inscriptions of the late Shang period already form a developed writing system.

Pictorial origins explain only part of their structure.

12.10 Independent and regional systems

Conventional visual systems developed in many regions for different purposes.

Important examples include:

• Nsibidi in the Cross River region of Nigeria and Cameroon;
• Vanuatu sand drawing;
• Naxi Dongba manuscripts;
• Indigenous mnemonic and route systems;
• heraldic and emblematic systems;
• public and occupational sign languages;
• modern graphical-symbol standards.

12.11 Provisional periodisation

Phase I: Ephemeral conventional marks

Body, ground, gesture and perishable surfaces.

Phase II: Recurrent durable motifs

Repeated signs on rock, bone, pottery and tools.

Phase III: Specialised notation

Ownership, ritual, counting, identity and exchange.

Phase IV: Proto-writing and administrative sign systems

Structured limited recording without full linguistic range.

Phase V: Glottographic writing

Logographic and phonographic representation of language.

Phase VI: Institutional pictogram systems

Heraldry, religious emblems, occupational marks and wayfinding.

Phase VII: Standardised public graphics

Transportation, safety, equipment and statistical pictograms.

Phase VIII: Digital pictorial communication

Interface icons, emoji, stickers, reactions and AAC systems.

13.1 The transition is not simple abstraction

A realistic ox head does not become an alphabet merely because generations draw it with fewer lines.

Graphic simplification and linguistic function are separate processes.

13.2 Category signs

A sign may first represent a category:

• grain;
• sheep;
• vessel;
• person;
• institution.

13.3 Logographic use

The sign can become associated with a word or morpheme.

13.4 Rebus use

The sign can be borrowed for its sound.

This expands the system’s reach beyond depictable objects.

13.5 Phonetic extension

Signs acquire syllabic or consonantal values.

13.6 Determinatives and classifiers

Non-pronounced signs help disambiguate words.

13.7 Ordering rules

Sign sequence becomes linguistically meaningful.

13.8 Grammar enters the record

Writing begins capturing relationships that pictures alone leave underdetermined.

13.9 Mixed systems

Early and mature writing systems often combine:

• logographic;
• phonographic;
• semantic;
• classificatory

functions.

13.10 Writing is not the death of pictures

Writing retains pictorial and diagrammatic neighbours.

Modern pages combine:

• text;
• numerals;
• punctuation;
• icons;
• diagrams;
• maps;
• emoji.

14.1 Administrative origin

The earliest Uruk tablets are dominated by accounting and institutional management.

14.2 Numerical signs

Number systems were not uniform across all commodities.

Different counting conventions could apply to:

• grain;
• animals;
• labour;
• time;
• capacity.

14.3 Commodity signs

Signs identified categories being counted or allocated.

14.4 Pictorial and abstract forms

Not all signs resemble visible objects.

14.5 Contextual reading

Position, numerical system, tablet type and institutional context influence interpretation.

14.6 Limited decipherment

Proto-cuneiform remains incompletely understood.

The corpus warns against treating an isolated sign as self-explanatory [6][7].

14.7 Abstraction through tool and speed

The wedge-shaped cuneiform style developed through the use of reed styli pressed into clay.

Material technique changed sign appearance.

14.8 Linguistic expansion

Later cuneiform combined logographic and syllabic values.

14.9 Project significance

Proto-cuneiform shows that writing did not emerge from pictures alone.

It grew from the convergence of:

• counting;
• accounting;
• classification;
• organisations;
• material technology;
• sign convention;
• language.

15.1 Pictorial appearance

Many signs visibly depict people, animals, objects or body parts.

15.2 Logographic function

A sign can represent a word.

15.3 Phonographic function

A sign can represent one or more consonantal sounds.

15.4 Determinatives

Signs can classify or disambiguate meanings.

15.5 Rebus logic

Pictorial form can be recruited for sound.

15.6 Visual composition

Direction and arrangement respond to:

• language;
• monument;
• aesthetics;
• available space.

15.7 Monumental authority

The script served:

• kingship;
• religion;
• administration;
• commemoration;
• funerary culture.

15.8 Lesson

A picture-shaped sign is not necessarily a picture-message.

16.1 Why the myth persists

Chinese characters often look visually distinctive to outsiders and some have pictorial origins.

16.2 What the system represents

Chinese writing represents linguistic units.

Characters are linked to:

• morphemes;
• syllables;
• words;
• pronunciation;
• semantic categories.

16.3 Semantic-phonetic compounds

Many characters combine a component suggesting meaning with another suggesting pronunciation.

16.4 Readers still need language

A person cannot read an unfamiliar Chinese text merely by recognising visual concepts.

16.5 Cross-language borrowing

Chinese characters have been adapted for other languages, but this requires language-specific reading conventions.

16.6 Project rule

Do not label Chinese writing simply as an ideographic language.

Use terms such as:

• morphosyllabic;
• logographic;
• character-based writing

with appropriate qualification.

17.1 Regional setting

Nsibidi is an indigenous system of graphic communication associated with peoples of the Cross River region in southeastern Nigeria and southwestern Cameroon [14][15].

17.2 Media

Signs appear in:

• drawing;
• gesture;
• body marking;
• textiles;
• objects;
• architecture;
• performance.

17.3 Public and restricted meanings

Some signs are widely accessible.

Others are connected to:

• initiation;
• authority;
• associations;
• legal or ritual knowledge.

17.4 Semantic range

Museum documentation associates Nsibidi signs with:

• relationships;
• marriage;
• conflict;
• illness;
• trade;
• journey;
• power;
• enslavement.

17.5 Fluidity

The system is not necessarily a single closed dictionary with one fixed form per meaning.

17.6 Colonial classification problem

Outsiders have alternately described Nsibidi as:

• writing;
• ideography;
• pictography;
• decoration;
• secret code.

These labels often reflect external assumptions about what counts as literacy.

17.7 Project significance

Nsibidi demonstrates that graphic communication can be:

• multimodal;
• socially stratified;
• semantically rich;
• embedded in organisations;
• partly secret;
• not reducible to alphabetic expectations.

18.1 Material

Drawings are traced in:

• sand;
• volcanic ash;
• clay.

18.2 Continuous line

A practitioner often uses one finger to create a continuous geometric form on an imagined grid.

18.3 Communication across language groups

UNESCO describes the tradition as a means of communication among communities spanning many language groups [12].

18.4 Performance and explanation

The drawing can operate with:

• stories;
• songs;
• knowledge;
• ritual;
• place;
• movement.

18.5 Ephemerality

The graphic may disappear quickly.

Its persistence lies in:

• trained bodies;
• memory;
• repeated performance;
• community transmission.

18.6 Boundary significance

The case disrupts the assumption that visual storage must be materially permanent.

A sign system can be externally visible yet remain culturally stored in people.

19.1 Community

The Naxi people of southwest China developed and preserved Dongba religious manuscripts.

19.2 Pictographic character

UNESCO describes the corpus as using more than two thousand pictographic characters [9][10].

19.3 Specialist literacy

Texts were traditionally read by Dongba ritual specialists.

19.4 Mnemonic and linguistic support

Library of Congress documentation notes that the manuscripts range from symbols to complex rebus structures involving verbs, particles and phonetic elements [11].

19.5 Not self-reading picture books

The manuscripts require:

• language;
• ritual knowledge;
• specialist training;
• oral explanation.

19.6 Endangerment

The system’s survival depends on both document preservation and living readers.

19.7 Project significance

Dongba demonstrates a continuum between:

• pictorial notation;
• mnemonic prompt;
• rebus;
• language representation;
• specialist performance.

20.1 The public-information problem

Modern transport, tourism and public infrastructure bring together users who differ in:

• language;
• literacy;
• age;
• cultural background;
• time pressure.

20.2 Standardisation

ISO 7001 specifies public-information symbols for locations and sectors accessible to the public [19].

20.3 Testing

ISO 9186 defines methods for assessing graphical-symbol comprehensibility [20].

This matters because recognisability cannot be established by a designer admiring the symbol over coffee.

20.4 Text support

ISO notes that symbols may be used with text to improve comprehension.

20.5 Transportation symbols

The United States Department of Transportation and AIGA developed a set of transportation symbols beginning in the 1970s [21].

20.6 Advantages

• rapid scanning;
• compact display;
• multilingual support;
• consistent wayfinding;
• low reading burden.

20.7 Limitations

• cultural assumptions;
• weak performance for abstract services;
• unfamiliarity;
• poor visibility;
• accessibility barriers;
• overconfidence in universality.

21.1 Origin

Charles K. Bliss designed Blissymbolics as a meaning-based international communication system.

21.2 Applied use

It was later adapted for people with severe speech and physical impairments [22].

21.3 Generativity

Bliss-characters can combine into new Bliss-words.

21.4 Grammar

The system supports more than isolated labels. It can express:

• tense;
• possession;
• plurality;
• questions;
• commands.

21.5 Governance

Blissymbolics Communication International standardises authorised vocabulary.

As of July 2026, the official vocabulary contains more than 6,500 authorised symbols [22][23].

21.6 The lesson of success

A semantic graphical language can become expressive when it gains:

• component rules;
• grammar;
• teaching;
• standardisation;
• governance;
• community practice.

21.7 The lesson of cost

Those same features show why a universal picture language cannot simply be guessed from resemblance.

It must be learnt.

22.1 Definition

Unicode describes emoji as pictographs, usually displayed in colourful cartoon form and used inline with text [25].

22.2 Information functions

Emoji can contribute:

• emotion;
• tone;
• stance;
• reaction;
• object reference;
• activity;
• social identity;
• conversational pacing.

22.3 Dependence on text

Emoji frequently supplement language rather than replace it.

22.4 Contextual flexibility

A skull may represent:

• death;
• danger;
• horror;
• laughter;
• exhaustion.

22.5 Ambiguity

Large-scale research on context-free emoji interpretation finds substantial variation in descriptions [27].

22.6 Cultural and demographic variation

Age, culture and other individual differences affect emoji comprehension [26].

22.7 Rendering variation

Different platform designs can change perceived emotion or meaning.

22.8 Standardisation and variation

Unicode standardises character identities, not one universal visual drawing.

22.9 Historical significance

Emoji represent not a return to primitive writing but a modern integration of pictorial signs into highly literate digital communication.

23.1 Object information

What kind of thing is present?

23.2 Location information

Where is a service, hazard or destination?

23.3 Action information

What should the recipient do?

23.4 Prohibition

What must not be done?

23.5 Hazard information

What threat is present?

23.6 Identity information

Who owns, belongs to or authorises something?

23.7 Category information

What class does an item belong to?

23.8 Quantity information

How many or how much?

This function leads into tallies and numerals.

23.9 Relational information

What is connected, contained, above, below, before or after?

This function leads into maps and diagrams.

23.10 Procedural information

Which sequence of operations should be followed?

23.11 Ritual information

Which sacred category, act or authority is involved?

23.12 Emotional information

What affective stance should be conveyed?

23.13 Social information

What relationship, status or affiliation is present?

23.14 Interface state

What can a machine do, and what state is it in?

23.15 Mnemonic information

What larger oral explanation should be retrieved?

24.1 Visual perception

Users must distinguish:

• shape;
• contrast;
• orientation;
• grouping.

24.2 Object recognition

Pictorial signs exploit recognisable features.

24.3 Shared attention

Users must understand that the mark is intended to stand for something.

24.4 Symbolic capacity

A visible form must be treated as referring beyond itself.

24.5 Memory

The association between sign and meaning must be retained.

24.6 Imitation

Signs must be reproducible.

24.7 Convention

A group must stabilise usage.

24.8 Material production

The sign needs a surface or display.

24.9 Category formation

Users must treat different instances as belonging to one conceptual class.

24.10 Social teaching

Complex systems require instruction.

24.11 Authority

Standardisation often requires someone to decide:

• approved forms;
• meanings;
• placement;
• revision.

24.12 Context

The environment narrows interpretation.

| Dimension | Provisional rating | Explanation | |---|---|---| | Reach | Moderate to global | Depends on placement and reproduction | | Latency | Low at point of encounter | Visual recognition can be rapid | | Bandwidth | Low to moderate | Strong for bounded meanings, weak for unrestricted propositions | | Fidelity | Moderate | High within trained communities, variable across contexts | | Persistence | Low to very high | Depends on medium | | Replication cost | Low | Simple signs are cheap to copy | | Distribution cost | Low to moderate | Printing and digital display reduce cost | | Accessibility | Moderate | Can reduce literacy barriers but creates visual and cultural barriers | | Portability | High | Signs can be placed on objects and transmitted digitally | | Interactivity | Low to moderate | Higher in AAC and digital dialogue | | Searchability | Moderate | Strong when indexed; weak in unstructured corpora | | Editability | Moderate | Easy digitally, difficult when carved or institutionalised | | Scalability | High for bounded domains | General-purpose systems become complex | | Authentication | Low to moderate | Emblems help, but signs can be copied | | Privacy | Low | Visible signs are usually exposed | | Censorship resistance | Moderate | Simple signs can circulate covertly, but public systems are controllable | | Infrastructure dependence | Low to moderate | Basic marks require little; standard systems require organisations | | Energy dependence | Low | Digital display increases dependence | | Interpretive burden | Low to high | Familiar pictograms are easy; unfamiliar semantic codes are difficult | | Attention demand | Low to moderate | Designed for rapid recognition | | Language dependence | Reduced but not eliminated | Context and explanation often remain linguistic | | Cultural dependence | Moderate to high | Conventions shape interpretation |

26.1 Full-scene production constraint

A compact sign replaces elaborate depiction.

26.2 Live-presence constraint

The maker need not remain present.

26.3 Repetition constraint

The same meaning can be reproduced consistently.

26.4 Recognition-time constraint

Familiar signs can be processed quickly.

26.5 Language barrier

Some signs support users across languages.

26.6 Literacy constraint

Selected information can be conveyed without alphabetic literacy.

26.7 Space constraint

Compact signs fit on:

• tools;
• doors;
• maps;
• interfaces;
• labels.

26.8 Attention constraint

A sign can communicate at a glance.

26.9 Category constraint

Signs stabilise recurring classes.

26.10 Navigation constraint

Wayfinding can be externalised into the environment.

26.11 Memory constraint

The environment can remind users what actions or categories apply.

26.12 Reproduction constraint

Standard forms can be copied across locations.

26.13 Translation cost

One public sign may reduce the need to print many language versions.

28.1 Shared categorisation

Signs help communities stabilise visible categories.

28.2 Administration

Commodity, ownership and institutional signs support organised management.

28.3 Trade

Marks indicate:

• maker;
• origin;
• quantity;
• ownership;
• contents.

28.4 Navigation

Signs turn built environments into readable systems.

28.5 Public safety

Warnings can communicate rapidly under pressure.

28.6 Governance

Authorities use signs to mark:

• jurisdiction;
• prohibition;
• permission;
• official identity.

28.7 Religion and ritual

Graphic forms connect material objects to sacred categories and performances.

28.8 Collective identity

Emblems and symbols support group recognition.

28.9 Education

Pictograms scaffold:

• vocabulary;
• sequencing;
• memory;
• concept instruction.

28.10 Accessibility

AAC systems expand expressive options for people who cannot rely on speech or conventional text.

28.11 Science and technical work

Specialised symbols compress complex operations.

28.12 Statistical communication

Pictorial statistics make patterns visible to broader audiences.

28.13 Digital interfaces

Icons allow users to operate complex systems within limited screen space.

28.14 Cross-language environments

Airports, hospitals and transport systems can provide a shared visual layer.

28.15 Foundations of writing

Conventional signs, classification and rebus use helped create language-representing scripts.

29.1 Sign makers

Specialists may control production.

29.2 Code authorities

Organisations determine official meaning.

29.3 Initiation

Some systems restrict knowledge to members.

29.4 State power

Governments regulate:

• road signs;
• borders;
• warnings;
• official emblems;
• prohibited symbols.

29.5 Religious authority

Priests or ritual specialists may monopolise interpretation.

29.6 Professional expertise

Technical symbols can exclude non-specialists.

29.7 Platform governance

Technology companies influence:

• available emoji;
• icon rendering;
• interface conventions;
• reaction vocabularies.

29.8 Standard-setting bodies

ISO, Unicode and professional organisations coordinate interoperability.

29.9 Colonial interpretation

Outside observers have often dismissed Indigenous graphic systems as decoration because they did not resemble alphabetic writing.

29.10 Cultural ownership

Digitisation can expose restricted signs beyond their intended communities.

30.1 Oversimplification

Complex situations are reduced to one visual category.

30.2 False universality

A sign designed in one culture is assumed to be transparent everywhere.

30.3 Propaganda

Powerful symbols can trigger identity and emotion without argument.

30.4 Dehumanisation

Groups can be reduced to hostile icons or stereotypes.

30.5 Exclusion

Unfamiliar users may misread official environments.

30.6 Accessibility failure

Visual-only communication excludes some users.

30.7 Misleading interface design

Icons can conceal:

• tracking;
• subscription;
• destructive actions;
• manipulation.

30.8 Authoritarian marking

Symbols can designate:

• permitted people;
• excluded groups;
• seized property;
• political loyalty.

30.9 Counterfeit authority

Official-looking marks can deceive.

30.10 Semantic drift

Meanings change across generations.

30.11 Restricted knowledge extraction

Museums, researchers and AI systems may reproduce signs without consent or context.

30.12 Emoji misunderstanding

A familiar graphic can intensify rather than solve ambiguity.

Direct predecessors

• Embodied non-verbal communication Gesture and embodied expression
• Rock and cave art Rock and cave art
• Neural and cognitive memory Neural and cognitive memory
• Imitation, repetition and apprenticeship Imitation, repetition and apprenticeship
• Oral tradition and storytelling Oral tradition and storytelling

Enabling dependencies

• visual categorisation;
• shared symbolic convention;
• durable and portable surfaces;
• social teaching;
• material production;
• organisations requiring identification and record;
• repeated encounters.

Direct successors

• Tally marks and notches Tally marks and notches
• Tokens and accounting objects Tokens and accounting objects
• Numerical notation Numerical notation
• Writing systems Writing systems

Later descendants

• seals and signatures;
• heraldry;
• maps;
• diagrams;
• mathematical notation;
• musical notation;
• public signage;
• safety symbols;
• trademarks and logos;
• statistical pictograms;
• interface icons;
• augmentative communication systems;
• emoji;
• data visualisation;
• machine-readable visual codes.

Relationship types

| Descendant | Relationship | |---|---| | Tallies | Specialisation | | Tokens | Complement and materialisation | | Numerals | Formalisation | | Writing | Extension through language representation | | Maps | Spatial specialisation | | Diagrams | Relational specialisation | | Public pictograms | Standardised revival and extension | | Emoji | Digital remediation | | AAC symbol systems | Accessibility specialisation | | QR and barcodes | Machine-readable abstraction |

Pictograms survive because they remain excellent when communication requires:

• speed;
• compactness;
• repeated bounded meanings;
• multilingual support;
• low reading burden;
• recognition at distance;
• supplementary emotional cues;
• operation of machines;
• environmental guidance.

Writing did not eliminate pictograms because writing is not always the best tool for:

• locating a toilet;
• warning of radiation;
• showing battery status;
• selecting a camera;
• identifying an emergency exit;
• reacting to a message with one tap.

The visual sign remains the pocket knife of communication: limited, compact and absurdly useful when the task fits the blade.

34.1 Neolithic sign use

Recurring marks appear on ritual and domestic objects.

34.2 Uruk administration

Visual and numerical notation supports expanding urban organisations.

34.3 Hieroglyphic monuments

Pictorially formed signs carry language, authority and sacred order.

34.4 Nsibidi communication

Graphic, gestural and material signs encode public and restricted meanings.

34.5 Naxi ritual manuscripts

Pictographic and rebus structures guide specialist performance.

34.6 Vanuatu sand drawing

Ephemeral graphic performance crosses linguistic and cultural boundaries.

34.7 Isotype and pictorial statistics

Twentieth-century designers attempt to make social data publicly visible.

34.8 Transportation pictograms

Standard sign families help users navigate international infrastructure.

34.9 Blissymbolics

A deliberately constructed semantic graphical language becomes an AAC system.

34.10 Unicode emoji

Pictographs are standardised as digital characters but remain visually and culturally variable.

35.1 Rock art versus pictograms

| Rock art | Conventional pictograms | |---|---| | Often composition-specific | Reusable sign type | | Meaning strongly tied to place and performance | Meaning more portable | | May depict scenes | Often compresses categories | | Copying may preserve style | Copying aims to preserve sign identity | | Semantic key may be local | Code may be standardised |

35.2 Pictograms versus writing

| Pictograms | Writing | |---|---| | Can bypass exact wording | Represents language | | Strong for bounded concepts | Generative across domains | | Often rapidly recognisable | Requires literacy | | Ambiguous for grammar | Encodes grammatical relations | | May cross languages | Usually language-specific | | Small inventories work well | Large expressive systems require extensive inventories and rules |

35.3 Pictograms versus diagrams

| Pictograms | Diagrams | |---|---| | Individual sign carries category meaning | Relationships between elements carry meaning | | Often object or action centred | Structure and process centred | | Read as sign | Read as system |

35.4 Pictograms versus emoji

Emoji are a digitally standardised subset of pictorial signs used within conversational text.

Their meaning depends heavily on:

• surrounding language;
• platform;
• community;
• generation;
• tone.

| Claim ID | Claim | Confidence | Main support | |---|---|---|---| | ENC005-C01 | Conventional visual signs compress recurring meanings into reusable forms | High | General synthesis | | ENC005-C02 | Pictorial resemblance does not guarantee shared interpretation | High | [18][20][28] | | ENC005-C03 | The term ideogram is conceptually unstable and often misapplied | High | [1][2][3] | | ENC005-C04 | Semasiographic systems can communicate meaning without encoding a particular utterance | High | [1][2] | | ENC005-C05 | General-purpose picture languages face vocabulary, syntax and standardisation problems | High | [1][22] | | ENC005-C06 | Writing differs from limited pictorial notation by systematically representing language | High | [2][3] | | ENC005-C07 | Rebus use helps signs represent sounds and non-picturable language | High | [3][11] | | ENC005-C08 | Jiahu provides evidence of early sign use, not established full writing | High | [8] | | ENC005-C09 | Proto-cuneiform emerged around 3300 BCE in administrative contexts | High | [4][5][6][7] | | ENC005-C10 | Proto-cuneiform contains numerical, pictorial and abstract signs | High | [4][6] | | ENC005-C11 | Egyptian hieroglyphs include phonographic and determinative functions | High | [29] | | ENC005-C12 | Chinese writing should not be described simply as direct ideography | High | [2][30] | | ENC005-C13 | Nsibidi is an Indigenous graphic communication system of the Cross River region | High | [14][15] | | ENC005-C14 | Some Nsibidi knowledge is public and some restricted | High | [15][16] | | ENC005-C15 | Vanuatu sand drawing supports communication across many language communities | High | [12] | | ENC005-C16 | Dongba manuscripts combine pictographic, mnemonic, rebus and specialist elements | High | [9][10][11] | | ENC005-C17 | ISO public pictograms are standardised and comprehension can be empirically tested | High | [19][20] | | ENC005-C18 | Cross-cultural differences affect small graphical-symbol comprehension | High | [18] | | ENC005-C19 | Iconicity can support early symbol learning | Moderate to high | [24] | | ENC005-C20 | Blissymbolics is a generative semantic graphical language used in AAC | High | [22][23] | | ENC005-C21 | Emoji are pictographs used inline in text | High | [25] | | ENC005-C22 | Emoji interpretation varies across users and cultures | High | [26][27] | | ENC005-C23 | Unicode standardises character identity but not one universal glyph design | High | [25] | | ENC005-C24 | Pictograms reduce language dependence but do not eliminate cultural knowledge | High | [18][19][20] | | ENC005-C25 | Visual signs can be instruments of governance, secrecy and exclusion | High | [14][16] | | ENC005-C26 | The topic is best modelled as a branching family rather than one evolutionary stage | High | Research notes synthesis |

1. What archaeological criteria best distinguish conventional sign use from decoration?
2. How much repetition is required before a motif can be treated as a sign type?
3. Which prehistoric sign corpora show reliable ordering or combination rules?
4. How should the map distinguish proto-writing from restricted writing?
5. Should semasiography become a formal taxonomy category?
6. Should maps, diagrams and notation receive one shared branch or separate topics?
7. How should the project represent multimodal systems such as Nsibidi?
8. What ethical rules should govern publication of restricted Indigenous signs?
9. How should visual accessibility be scored across historical systems?
10. Which public pictograms have the strongest cross-cultural comprehension evidence?
11. How do children learn arbitrary symbols after iconic scaffolding becomes less important?
12. Does emoji use expand visual vocabulary or mainly provide pragmatic cues to text?
13. How do machine-generated icons affect standardisation and trust?
14. Can AI infer undocumented sign meanings without reproducing colonial decoding errors?
15. When does a sign inventory become too large to function without phonetic support?

| Field | Value | |---|---| Pictograms and ideograms | | Method name | Pictograms and ideograms | | Recommended name | Conventional visual signs and semasiographic systems | | Alternative names | Pictograms; pictographs; semantic graphics; conventional visual symbols | | Topic type | Visual encoding method and sign system | | Primary category | Encoding and expression | | Secondary categories | Storage; interpretation; discovery; governance; cultural memory | | Earliest evidence | Prehistoric; exact origin unrecoverable | | Secure structured examples | Neolithic recurrent sign use; proto-writing by late fourth millennium BCE | | Mass adoption | Recurrent across many societies; modern global standardisation in the twentieth century | | Current status | Ubiquitous and transformed | | Communication pattern | Mostly one-to-many and asynchronous; interactive in AAC and digital dialogue | | Main problem addressed | Compresses recurring meanings into repeatable visible signs | | Primary predecessors | Gesture; rock art; symbolic convention | | Primary successors | Tallies; tokens; numerals; writing; diagrams; icons | | Main benefits | Speed; compactness; recognition; cross-language support; categorisation | | Main harms | Ambiguity; cultural bias; exclusion; oversimplification; propaganda | | Reach | Moderate to global | | Latency | Low at encounter | | Bandwidth | Low to moderate | | Fidelity | Moderate | | Persistence | Medium-dependent | | Replication cost | Low | | Accessibility | Moderate | | Portability | High | | Interactivity | Low to moderate | | Searchability | Moderate with metadata | | Authentication | Low to moderate | | Infrastructure dependence | Low to moderate | | Interpretive burden | Variable | | Research state | Researched and provisionally synthesised |

42.1 Add semasiography

The taxonomy should distinguish:

• visual systems that communicate meaning;
• writing systems that represent language.

42.2 Separate appearance from function

A sign that looks like a picture may function as:

• logogram;
• phonogram;
• determinative;
• emblem;
• classifier.

42.3 Add conventionality

Every topic involving signs should record:

• iconicity;
• arbitrariness;
• training requirement;
• code governance.

42.4 Add bounded versus general-purpose scope

Some systems work brilliantly because they solve a narrow problem.

42.5 Add multimodality

Systems such as Nsibidi can combine:

• graphic form;
• gesture;
• object;
• body;
• performance.

42.6 Add ethical access

The dataset should distinguish:

• public signs;
• occupational signs;
• restricted signs;
• sacred or community-controlled signs.

42.7 Add rendering stability

Digital signs may retain character identity while changing visual form across platforms.

Theory, terminology and writing-system classification

[1] Morin, Olivier. “The Puzzle of Ideography.” Behavioral and Brain Sciences 46 (2023): e233.
https://doi.org/10.1017/S0140525X22002801

[2] Coulmas, Florian. “The Basic Options: Meaning and Sound.” In Writing Systems: An Introduction to Their Linguistic Analysis. Cambridge University Press, 2002.
https://www.cambridge.org/core/books/writing-systems/basic-options-meaning-and-sound/1FB5E0982E94C11D0505E3BE70E3B32A

[3] “Classifying and Comparing Early Writing Systems.” In The Cambridge Handbook of Historical Orthography. Cambridge University Press, 2023.
https://doi.org/10.1017/9781108766463.002

Mesopotamia and the origins of writing

[4] Metropolitan Museum of Art. “The Origins of Writing.”
https://www.metmuseum.org/essays/the-origins-of-writing

[5] British Museum. “How to Write Cuneiform.”
https://www.britishmuseum.org/blog/how-write-cuneiform

[6] Englund, Robert K. “Proto-Cuneiform Account-Books and Journals.” Cuneiform Digital Library Initiative.
https://cdli.earth/files-up/publications/englund2004a.pdf

[7] Cuneiform Digital Library Initiative. “Uruk and I.” 2024.
https://cdli.earth/articles/cdlj/2024-1

Early sign use and proto-writing

[8] Li, Xueqin, Garman Harbottle, Juzhong Zhang and Changsui Wang. “The Earliest Writing? Sign Use in the Seventh Millennium BC at Jiahu, Henan Province, China.” Antiquity 77 (2003): 31–44.
https://doi.org/10.1017/S0003598X00061329

Naxi Dongba

[9] UNESCO Memory of the World. “Ancient Naxi Dongba Literature Manuscripts.”
https://www.unesco.org/en/memory-world/ancient-naxi-dongba-literature-manuscripts

[10] UNESCO. “The Last Living Pictographic Script in the World.” 2023.
https://www.unesco.org/en/articles/unesco-supports-launch-mooc-initiation-dongba-script-last-living-pictographic-script-world

[11] Library of Congress. “Living Pictographs.” 1999.
https://www.loc.gov/loc/lcib/9906/naxi1.html

Vanuatu sand drawing

[12] UNESCO Intangible Cultural Heritage. “Vanuatu Sand Drawings.”
https://ich.unesco.org/en/RL/vanuatu-sand-drawings-00073

[13] UNESCO Multimedia Archives. “Vanuatu Sand-drawings.”
https://www.unesco.org/archives/multimedia/document-3757

Nsibidi and African graphic systems

[14] Smithsonian National Museum of African Art. “Inscribing Meaning: Writing and Graphic Systems in African Art.”
https://africa.si.edu/exhibitions/inscribing-meaning-writing-and-graphic-systems-africa-art

[15] Smithsonian National Museum of African Art. “Featured Artwork: Ukara and Nsibidi.”
https://africa.si.edu/collection/selected-artwork/1996

[16] Metropolitan Museum of Art. “The Akwanshi Stone Monoliths of the Cross River Region in Nigeria and Cameroon.”
https://www.metmuseum.org/essays/akwanshi-stone-monoliths

[17] Hood Museum of Art. “Ukara: Ritual Cloth of the Ekpe Secret Society.”
https://hoodmuseum.dartmouth.edu/explore/exhibitions/ukara

Comprehension, iconicity and standards

[18] Piamonte, D. Paul, H. Ohlsson and S. Abeysekera. “Understanding Small Graphical Symbols: A Cross-Cultural Study.” International Journal of Industrial Ergonomics 27 (2001): 399–404.
https://doi.org/10.1016/S0169-8141(01)00007-5

[19] International Organization for Standardization. “ISO 7001:2023: Graphical Symbols — Registered Public Information Symbols.”
https://www.iso.org/standard/77442.html

[20] International Organization for Standardization. “ISO 9186-1:2014: Graphical Symbols — Test Methods.”
https://www.iso.org/obp/ui/#iso:std:iso:9186:-1:ed-2:v1:en

[21] AIGA. “Symbol Signs.”
https://www.aiga.org/resources/symbol-signs

[22] Blissymbolics Communication International. “About Blissymbolics.”
https://www.blissymbolics.org/index.php/about-blissymbolics

[23] Blissymbolics Communication International. “Authorized Vocabulary and System Development.”
https://www.blissymbolics.org/

[24] Namy, Laura L., et al. “The Changing Role of Iconicity in Non-Verbal Symbol Learning.” Journal of Cognition and Development 5 (2004).
https://www.eva.mpg.de/documents/Taylor%20%26%20Francis/Namy_Changing_JCogDev_2004_1555586.pdf

Emoji and digital pictographs

[25] Unicode Consortium. “Unicode Technical Standard #51: Unicode Emoji.”
https://unicode.org/reports/tr51/

[26] Chen, Y. et al. “Individual Differences in Emoji Comprehension: Gender, Age and Culture.” PLOS ONE 19 (2024).
https://pmc.ncbi.nlm.nih.gov/articles/PMC10866486/

[27] Czestochowska, Justyna et al. “On the Context-Free Ambiguity of Emoji.” 2022.
https://arxiv.org/abs/2201.06302

[28] Dada, Shakila et al. “The Iconicity of Picture Communication Symbols for Children with English Additional Language and Mild Intellectual Disability.” Augmentative and Alternative Communication 29 (2013).
https://pubmed.ncbi.nlm.nih.gov/24229339/

Egyptian and Chinese writing

[29] Metropolitan Museum of Art. Studies on Egyptian hieroglyphic phonetic and determinative functions.
https://resources.metmuseum.org/resources/metpublications/pdf/Evolution_of_Composite_Hieroglyphs_in_Ancient_Egypt_The_Metropolitan_Museum_Journal_v_12_1977.pdf

[30] Cambridge University Press. “Writing Systems.” In Inventing Languages: A Practical Introduction. 2025.
https://www.cambridge.org/core/books/inventing-languages/writing-systems/7D51548DC70AC68DB8B8E1DB0607BE34

Additional comparative resources

[31] Library of Congress. “Etched in Stone: First, There Was the Word.”
https://blogs.loc.gov/international-collections/2022/12/etched-in-stone-first-there-was-the-word/

[32] Unicode Consortium. “Proposal for Encoding Emoji Symbols.” 2009.
https://unicode.org/L2/L2009/09025r2-emoji.pdf

[33] International Organization for Standardization. “Graphical Symbols, ISO/TC 145.”
https://www.iso.org/committee/52662.html

44.1 The breakthrough is repeatability

Rock art proves that images can persist.

Conventional signs prove that meanings can be compressed into reusable forms.

44.2 Resemblance begins the journey but convention runs the railway

A picture may help a viewer guess.

Stable communication requires the community to agree on:

• what counts as the sign;
• what it means;
• where it applies;
• how it combines.

44.3 Pictograms are powerful because they are limited

They excel when:

• the domain is bounded;
• the context is clear;
• rapid recognition matters;
• the same meanings recur.

44.4 The ideogram dream reveals the value of language

A pure universal picture system sounds wonderfully efficient until it must communicate:

• uncertainty;
• tense;
• counterfactuals;
• names;
• causation;
• sarcasm;
• bureaucracy.

At that point the sign system begins asking for vocabulary, syntax, teachers, standards and a small department of exhausted administrators.

44.5 Writing solves a different problem

Writing does not merely preserve concepts.

It allows visible marks to encode linguistic expressions with far greater generativity and precision.

44.6 Yet the pictogram never leaves

Modern communication still relies on conventional visual signs because language is not always the fastest interface.

44.7 Final topic statement

Pictograms and related conventional signs transformed images from unique depictions into reusable units of public meaning. They compressed categories, actions and instructions into portable visible forms, but their dependence on context and convention limited their ability to express unrestricted thought. Writing emerged not when pictures became simple, but when signs became capable of representing language.