Assets: UNESCO ( 2-, 4-digit codes)

UNESCO Nomenclature (more properly UNESCO nomenclature for fields of science and technology) is a system developed by UNESCO for classification of research papers and doctoral dissertations. There are three versions of the system, offering different levels of refinement through 2-, 4-, and 6-digit codes. This page describes the 2- and 4-digit nomenclature

Two-digit nomenclature (24)

  • 11 Logic
  • 12 Mathematics
  • 21 Astronomy, Astrophysics
  • 22 Physics
  • 23 Chemistry
  • 24 Life Sciences
  • 25 Earth and space science
  • 31 Agricultural Sciences
  • 32 Medical Sciences
  • 33 Technological Sciences
  • 51 Anthropology
  • 52 Demography
  • 53 Economic Sciences
  • 54 Geography
  • 55 History
  • 56 Juridical Science and Law
  • 57 Linguistics
  • 58 Pedagogy
  • 59 Political Science
  • 61 Psychology
  • 62 Sciences of Arts and Letters
  • 63 Sociology
  • 71 Ethics
  • 72 Philosophy

4-digit nomenclature (270)

  • 11 Logic
    • 1101 Application of logic
    • 1102 Deductive logic
    • 1103 General logic
    • 1104 Inductive logic
    • 1105 Methodology
    • 1199 Other specialities relating to logic
  • 12 Mathematics
    • 1201 Algebra
    • 1202 Analysis and functional analysis
    • 1203 Computer Sciences
    • 1204 Geometry
    • 1205 Number theory
    • 1206 Numerical analysis
    • 1207 Operations research
    • 1208 Probability
    • 1209 Statistics
    • 1210 Topology
    • 1299 Other mathematical specialities
  • 21 Astronomy, Astrophysics
    • 2101 Cosmology and cosmogony
    • 2102 Interplanetary medium
    • 2103 Optical astronomy
    • 2104 Planetology
    • 2105 Radio-astronomy
    • 2106 Solar system
    • 2199 Other astronomical specialities
  • 22 Physics
    • 2201 Acoustics
    • 2202 Electro-magnetism
    • 2203 Electronics
    • 2204 Fluids (physics of)
    • 2205 Mechanics
    • 2206 Molecular physics
    • 2207 Nuclear physics
    • 2208 Nucleonics
    • 2209 Optics
    • 2210 Physical chemistry
    • 2211 Solid state physics
    • 2212 Theoretical physics
    • 2213 Thermodynamics
    • 2214 Units and constants
    • 2299 Other physical specialities
  • 23 Chemistry
    • 2301 Analytical chemistry
    • 2302 Biochemistry
    • 2303 Inorganic chemistry
    • 2304 Macromolecular chemistry
    • 2305 Nuclear chemistry
    • 2306 Organic chemistry
    • 2307 Physical chemistry
    • 2399 Other chemical specialities
  • 24 Life Sciences
    • 2401 Animal Biology (Zoology)
    • 2402 Anthropology (physical)
    • 2403 Biochemistry
    • 2404 Biomathematics
    • 2405 Biometrics
    • 2406 Biophysics
    • 2407 Cell biology
    • 2408 Ethology
    • 2409 Genetics
    • 2410 Human biology
    • 2411 Human physiology
    • 2412 Immunology
    • 2413 Insect Biology (Entomology)
    • 2414 Microbiology
    • 2415 Molecular biology
    • 2416 Palaeontology
    • 2417 Plant Biology (Botany)
    • 2418 Radiobiology
    • 2419 Symbiosis
    • 2420 Virology
    • 2499 Other biological specialities
  • 25 Earth and Space Science
    • 2501 Atmospheric sciences
    • 2502 Climatology
    • 2503 Geochemistry
    • 2504 Geodesy
    • 2505 Geography
    • 2506 Geology
    • 2507 Geophysics
    • 2508 Hydrology
    • 2509 Meteorology
    • 2510 Oceanography
    • 2511 Soil Science
    • 2512 Space Sciences
    • 2599 Other Earth, Space or Environmental specialities
  • 31 Agricultural Sciences
    • 3101 Agricultural chemistry
    • 3102 Agricultural engineering
    • 3103 Agronomy
    • 3104 Animal husbandry
    • 3105 Fish and wildlife
    • 3106 Forestry
    • 3107 Horticulture
    • 3108 Phytopathology
    • 3109 Veterinary sciences
    • 3199 Other agricultural specialities
  • 32 Medical Sciences
    • 3201 Clinical sciences
    • 3202 Epidemiology
    • 3203 Forensic medicine
    • 3204 Occupational medicine
    • 3205 Internal medicine
    • 3206 Nutrition sciences
    • 3207 Pathology
    • 3208 Pharmacodynamics
    • 3209 Pharmacology
    • 3210 Preventive medicine
    • 3211 Psychiatry
    • 3212 Public health
    • 3213 Surgery
    • 3214 Toxicology
    • 3299 Other medical specialities
  • 33 Technological Sciences
    • 3301 Aeronautical technology and engineering
    • 3302 Biochemical technology
    • 3303 Chemical technology and engineering
    • 3304 Computer technology
    • 3305 Construction technology
    • 3306 Electrical technology and engineering
    • 3307 Electronic technology
    • 3308 Environmental technology and engineering
    • 3309 Food technology
    • 3310 Industrial technology
    • 3311 Instrumentation technology
    • 3312 Materials technology
    • 3313 Mechanical Engineering and technology
    • 3314 Medical technology
    • 3315 Metallurgical technology
    • 3316 Metal products technology
    • 3317 Motor vehicle technology
    • 3318 Mining technology
    • 3319 Naval technology
    • 3320 Nuclear technology
    • 3321 Petroleum and coal technology
    • 3322 Power technology
    • 3323 Railway technology
    • 3324 Space technology
    • 3325 Telecommunications technology
    • 3326 Textile technology
    • 3327 Transportation systems technology
    • 3328 Unit operations technology
    • 3329 Urban Planning
    • 3399 Other technological specialities
  • 51 Anthropology
    • 5101 Cultural anthropology
    • 5102 Ethnography and Ethnology
    • 5103 Social anthropology
    • 5199 Other anthropology specialities
  • 52 Demography
    • 5201 Fertility
    • 5202 General demography
    • 5203 Geographical demography
    • 5204 Historical demography
    • 5205 Mortality
    • 5206 Population characteristics
    • 5207 Population size and demographic evolution
    • 5299 Other demographic specialities
  • 53 Economic Sciences
    • 5301 Domestic fiscal policy and public finance
    • 5302 Econometrics
    • 5303 Economic accounting
    • 5304 Economic activity
    • 5305 Economic systems
    • 5306 Economics of technological change
    • 5307 Economic theory
    • 5308 General economics
    • 5309 Industrial organization and public policy
    • 5310 International economics
    • 5311 Organization and management of enterprises
    • 5312 Sectorial economics
    • 5399 Other economic specialities
  • 54 Geography
    • 5401 Economic geography
    • 5402 Historical geography
    • 5403 Human geography
    • 5404 Regional geography
    • 5499 Other geographical specialities
  • 55 History
    • 5501 Biographies
    • 5502 General history
    • 5503 History of countries
    • 5504 History by epochs
    • 5505 Sciences auxiliary to history
    • 5506 Specialized histories
    • 5599 Other historical specialities
  • 56 Juridical Science and Law
    • 5601 Canon law
    • 5602 General theory and method
    • 5603 International law
    • 5604 Legal organization
    • 5605 National law and legislation
    • 5699 Other juridical specialities
  • 57 Linguistics
    • 5701 Applied linguistics
    • 5702 Diachronic linguistics
    • 5703 Linguistic geography
    • 5704 Linguistic theory
    • 5705 Synchronic linguistics
    • 5799 Other linguistic specialities
  • 58 Pedagogy
    • 5801 Educational theory and methods
    • 5802 Organization and planning of education
    • 5803 Teacher training and employment
    • 5899 Other pedagogical specialities
  • 59 Political Science
    • 5901 International relations
    • 5902 Policy sciences
    • 5903 Political ideologies
    • 5904 Political institutions
    • 5905 Political life
    • 5906 Political sociology
    • 5907 Political systems
    • 5908 Political theory
    • 5909 Public administration
    • 5910 Public opinion
    • 5999 Other political science specialities
  • 61 Psychology
    • 6101 Abnormal psychology
    • 6102 Adolescent and child psychology
    • 6103 Counselling and guidance
    • 6104 Educational psychology
    • 6105 Evaluation and measurement in psychology
    • 6106 Experimental psychology
    • 6107 General psychology
    • 6108 Geriatric psychology
    • 6109 Occupational and personnel psychology
    • 6110 Parapsychology
    • 6111 Personality
    • 6112 Psychological study of social issues
    • 6113 Psychopharmacology
    • 6114 Social psychology
    • 6199 Other psychological specialities
  • 62 Sciences of Arts and Letters
    • 6201 Architecture
    • 6202 Literary theory, analysis and criticism
    • 6203 Fine arts theory, analysis and criticism
    • 6299 Other artistic specialities
  • 63 Sociology
    • 6301 Cultural sociology
    • 6302 Experimental sociology
    • 6303 General sociology
    • 6304 International disorder
    • 6305 Mathematical sociology
    • 6306 Occupational sociology
    • 6307 Social change and development
    • 6308 Social communications
    • 6309 Social groups
    • 6310 Social problems – Social disorder
    • 6311 Sociology of human settlements
    • 6399 Other sociological specialities
  • 71 Ethics
    • 7100 Ethics
    • 7101 Classical ethics
    • 7102 Ethics of individuals
    • 7103 Group ethics
    • 7104 Prospective ethics
    • 7199 Other specialities relating to ethics
  • 72 Philosophy
    • 7201 Philosophy of knowledge
    • 7202 Philosophical anthropology
    • 7203 General philosophy
    • 7204 Philosophical systems
    • 7205 Philosophy of science
    • 7206 Philosophy of nature
    • 7207 Social philosophy
    • 7208 Philosophical doctrines
    • 7209 Other philosophical specialities