Library of Congress Classification System

Changes to Library services during the COVID-19 lockdown.

This is an outline of the Library of Congress Classification System used by most academic libraries. For further assistance ask at the Research Help Desk on the Main floor.

A-G , M: Floor 5 in our Library

A: General Works

  • AE: Encyclopedias (General)
  • AI: Indexes
  • AM: Museums
  • AP: Periodicals
  • AS: Academies and learned societies
  • AY: Yearbooks, Almanacs, Directories

B: Philosophy, Psychology, Religion

  • B: History and systems of philosophy
  • BC: Logic
  • BD: Speculative philosophy
  • BF: Psychology
  • BH: Aesthetics
  • BJ: Ethics
  • BL: Religions, Mythology
  • BM: Judaism 
  • BP: Islam
  • BQ: Buddhism
  • BR: Christianity
  • BS: Bible
  • BT: Doctrinal theology
  • BV: Practical theology 
  • BX: Denominations and sects

C-F: History, Description and Travel

  • CB: History of civilization and culture
  • CC: Archaeology (General)
  • CD: Diplomatics, Archives, Seals
  • CE: Chronology
  • CJ: Numismatics
  • CN: Epigraphy
  • CR: Heraldry
  • CS: Genealogy
  • CT: Biography (General)
  • D: History (General)
  • DA: Great Britain
  • DB: Austria, Czechoslovakia, Hungary 
  • DC: France
  • DD: Germany
  • DE: Classical Antiquity
  • DF: Greece
  • DG: Italy
  • DK: Russia, Poland
  • DL: Northern Europe
  • DP: Spain, Portugal
  • DQ: Switzerland
  • DR: Eastern Europe; Turkey
  • DS: Asia
  • DS520-DS689: Southeast Asia
  • DT: Africa
  • DU: Oceania, Australia, New Zealand
  • E: America (General), United States
  • F1-975: United States (local)
  • F1201-1392: Mexico
  • F1401-3799: Central and South America, the Caribbean area
  • FC: Canada

G: Geography, Anthropology, Recreation

  • G: Atlases, Globes, Maps
  • GA: Mathematical geography, Cartography
  • GB: Physical geography
  • GC: Oceanography
  • GF: Human ecology
  • GN: Anthropology
  • GR: Folklore
  • GT: Manners and customs
  • GV: Sports and recreation
  • GV1580-GV1799: Dance

M: Music

  • M: Music (General), Scores
  • ML: Literature of music
  • MT: Theory of music

H-L: Floor 4 in our Library

H: Social Sciences and Business

  • H: Social sciences (General)
  • HA: Statistics 
  • HB: Economic theory, Population
  • HC: Economic history, Development
  • HD: Land, Agriculture, Labour, Industry
  • HE: Transportation and communication
  • HF: Commerce, Accounting, Marketing
  • HG: Banking, Finance
  • HJ: Public finance
  • HM: Sociology
  • HN: Social history, Social problems
  • HQ: Family, Marriage, Women
  • HS: Societies and clubs
  • HT: Urban Studies, Social Classes, Races
  • HV: Social work, Criminology
  • HX: Socialism, Communism, Anarchism

J: Political Science, International Affairs, Public Administration

  • J: Official documents
  • JA: Collections and general works
  • JC: Political theory
  • JF: Constitutional history and administration
  • JK: United States
  • JL: Canada
  • JN: Europe
  • JQ: Asia, Africa, Australia, Oceania
  • JS: Local government
  • JV: Colonies
  • JX: International affairs, International law

K: Law

  • K: Law (General)
  • KD: United Kingdom and Ireland
  • KE: Canada
  • KF: United States
  • KG: Latin America, Mexico and Central America
  • KH: South America

L: Education

  • L: Education (General)
  • LA: History of education
  • LB: Theory and practice
  • LC: Social aspects

M: Music

N-Q: Floor 3 in our Library

N: Fine Arts and Architecture

  • N: Visual arts (General)
  • NA: Architecture
  • NB: Sculpture
  • NC: Drawing, Design, Illustration
  • ND: Painting
  • NE: Print media
  • NK: Industrial design, Applied arts
  • NX: Arts in general

P: Languages and Literature

  • P: Philology and linguistics
  • PA: Classical languages and literatures
  • PB: Modern European languages (general)
  • PC: Romance languages: Italian, French Spanish
  • PD: Old Germanic and Scandinavian languages
  • PE: English language
  • PF: German language
  • PG: Slavic languages and literature
  • PH: Finno-Ugrian and Basque languages and literature
  • PJ: Middle Eastern languages and literature
  • PK: Indo-Iranian languages and literature
  • PL: Asian and African languages and literature
  • PM: American Indian languages
  • PN: Literature (general and comparative), Broadcasting, Film, Journalism
  • PN1993-PN1996: Motion Pictures
  • PQ: Romance literatures: French, Italian, Spanish
  • PR: English Literature
  • PS: American literature
  • PS8000 Canadian literature (French and English)
  • PT: German literature
  • PZ: Juvenile literature

Q: Science

  • Q Science (General) 
  • QA: Mathematics, Computer science, Artificial intelligence
  • QB: Astronomy
  • QC: Physics, Meteorology
  • QD: Chemistry
  • QE: Geology
  • QH: Natural history, Biology
  • QK: Botany
  • QL: Zoology
  • QM: Human anatomy
  • QP: Physiology
  • QR: Microbiology

R-Z: Floor 1 in our Library

R: Medicine

  • R: Medicine (General)
  • RA: Public health
  • RB: Pathology
  • RC: Neurology, Psychiatry, Geriatrics
  • RD: Surgery
  • RG: Gynecology and obstetrics
  • RJ: Pediatrics
  • RM: Pharmacology
  • RT: Nursing

S: Agriculture

  • S: Agriculture (General)
  • SB: Plant culture 
  • SD: Forestry
  • SF: Animal culture
  • SH: Aquaculture, Fisheries, Fishing 
  • SK: Hunting

T: Technology

  • T: Technology (General)
  • TA: Engineering (General), Civil engineering, Soil mechanics
  • TC: Hydraulic engineering
  • TD: Environmental technology
  • TE: Highway engineering 
  • TF: Railroad engineering
  • TG: Bridge engineering 
  • TH: Building construction
  • TJ: Mechanical engineering and machinery
  • TK: Electrical engineering, Electronics, Computer science
  • TL: Motor vehicles, Aeronautics
  • TN: Mining and metallurgy
  • TP: Chemical technology
  • TR: Photography, Cinematography
  • TS: Manufactures
  • TT: Handicrafts, Arts and crafts
  • TX: Home economics, Cooking

U: Military Science

  • UA: Armies
  • UB: Military administration
  • UG: Military engineering
  • UH: Other services

V: Naval Science

Z: Book industries and trade, Libraries and library science. Bibliography

More detailed version

Content last updated: April 2, 2019