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Library of Congress Classification System

Library of Congress Classification System

Books in this library are shelved according to the Library of Congress Classification System, which separates all knowledge into 20 classes. Each class corresponds to a letter of the alphabet with subclasses identified by combinations of letters and subtopics by numerical notations. Listed below are the 20 classes (with subclasses) and their corresponding letters, the first letters in LC Call Numbers. For more information on reading LC Call Numbers please see the user guide, "Understanding Library of Congress Call Numbers" on this site.

Look Up by Classification Letter
A | B | C | D | E-F | G | H | J | K | L | M | N | P | Q | R | S | T | U | V | Z

Look Up by Class
General Works | Philosophy Psychology Religion | Auxiliary Sciences of History | History: General and Old World | History: Western Hemisphere | Geography Anthropology Recreation | Social Sciences | Political science | Law | Education | Music | Fine Arts | Language and Literature | Science | Medicine | Agriculture | Technology | Military Science | Naval Science | Bibliography - Library Science

A General Works     top

  AC Collections
  AE Encyclopedias
  AG Dictionaries
  AI Indexes
  AM Museums
  AN Newspapers
  AP Periodicals
  AS Academies and societies
  AY Yearbooks. Almanacs. Directories
  AZ History of scholarship

B Philosophy Psychology Religion      top

  B Philosophy (General)
  BC Logic
  BD Speculative philosophy
  BF Psychology. Parapsychology. Occultism
  BH Aesthetics
  BJ Ethics. Social usages. Etiquette
  BL Religions. Mythology
  BM Judaism
  BP Islam. Bahaism. Theosophy, etc.
  BQ Buddhism
  BR Christianity
  BS Bible
  BT Christianity: Doctrinal theology
  BV Christianity: Practical theology
  BX Christian denominations

C Auxiliary Sciences of History      top

  C General
  CB History of Civilization
  CC Archaeology
  CD Diplomatics. Archives. Seals
  CE Technical chronology. Calendar
  CJ Numismatics
  CN Inscriptions. Epigraphy
  CR Heraldry
  CS Genealogy
  CT Biography

D History: General and Old World     top

  D General
  DA Great Britain
  DB Austria. Hungary. Czechoslovakia
  DC France
  DD Germany
  DE Mediterranean region - Classical
  DF Greece
  DG Italy
  DH Low Countries: Belgium. Luxemburg
  DJ Netherlands (Holland)
  DJK Eastern Europe
  DK Soviet Union. Poland
  DL Northern Europe. Scandinavia
  DP Spain. Portugal
  DQ Switzerland
  DR Balkan Peninsula. Turkey
  DS Asia
  DT Africa
  DU Oceania. Australia. New Zealand
  DX Gypsies

E-F History: Western Hemisphere     top

  E  America
  F  U. S. local history. Canada. Latin America

G Geography. Anthropology. Recreation     top

  G General. Atlases. Maps
  GA Mathematical geography. Cartography
  GB Physical geography
  GC Oceanography
  GF Human ecology. Anthropogeography
  GN Anthropology
  GR Folklore
  GT Manners and customs
  GV Recreation. Sports. Games

H Social Sciences     top

  H General
  HA Statistics
  HB Economics
  HC Economic History
  HD Land. Agriculture. Industry. Labor
  HE Transportation and communications
  HF Commerce
  HG Finance
  HJ Public finance
  HM Sociology
  HN Social History
  HQ Family. Marriage. Women
  HS Societies. Clubs
  HT Communities. Classes. Races
  HV Social pathology. Social service. Criminology
  HX Socialism. Communism

J Political Science     top

  J General legislative and executive papers
  JA Political science - General
  JC Political theory. The state
  JF Constitutional history - General
  JK Constitutional history - United States
  JL Constitutional history - Canada. Latin America
  JN Constitutional history - Europe
  JQ Constitutional history - Asia. Africa. Australia. Oceania
  JS Local government
  JV Colonies and colonization
  JX International law. International relations

K Law     top

  K General
  KD United Kingdom and Ireland
  KDZ America. North America. OAS
  KE Canada
  KF United States
  KG-KH Latin America
  KJ-KK Europe

L Education     top

  L General
  LA History of education
  LB Theory and practice of education
  LC Special aspects of education
  LD Individual institutions - United States
  LE Individual institutions - Other Americas
  LF Individual institutions - Europe
  LG Individual institutions - Asia. Africa. Oceania
  LH College publications
  LJ Student fraternities and sororities
  LT Textbooks

M Music     top

  M General
  ML Literature of music
  MT Music instruction

N Fine Arts     top

  N Visual arts (General)
  NA Architecture
  NB Sculpture
  NC Drawing
  ND Painting
  NE Print media
  NK Decorative arts. Applied arts
  NX Arts in general

P Language and Literature     top

  P Philology and linguistics
  PA Classical languages and literature
  PB Celtic languages
  PC Romance languages
  PD Germanic languages. Scandinavian languages
  PE English language
  PF West Germanic languages. Dutch. German
  PG Slavic, Baltic, Armenian languages and literature
  PH Finno-Ugrian languages and literature
  PJ Oriental languages and literatures
  PK Indo-Iranian languages and literatures
  PL East Asian languages and literatures
  PM American Indian languages. Artificial languages
  PN Literature. General literary history and collections. Performing arts.
  PQ Romance literatures
  PR English literature
  PS American literature
  PT Germanic literatures
  PZ Juvenile belle lettres

Q Science     top

  Q General
  QA Mathematics
  QB Astronomy
  QC Physics
  QD Chemistry
  QE Geology
  QH Natural History. Biology
  QK Botany
  QL Zoology
  QM Human anatomy
  QP Physiology
  QR Microbiology

R Medicine     top

  R General
  RA Public aspects of medicine
  RB Pathology
  RC Internal medicine
  RD Surgery
  RE Ophthalmology
  RF Otorhinolaryngology
  RG Gynecology and obstetrics
  RJ Pediatrics
  RK Dentistry
  RL Dermatology
  RM Therapeutics. Pharmacology
  RS Pharmacy. Materia medica
  RT Nursing
  RV Botanic, Thomsonian, eclectic medicine
  RX Homeopathy
  RZ Other systems of medicine

S Agriculture     top

  S General
  SB Plant culture
  SD Forestry
  SF Animal culture
  SH Aquaculture. Fisheries. Angling
  SK Hunting

T Technology     top

  T General
  TA Engineering - General and civil
  TC Hydraulic engineering
  TD Environmental technology. Sanitary engineering
  TE Highway engineering
  TF Railroad engineering
  TG Bridge construction
  TH Building construction
  TJ Mechanical engineering and machinery
  TK Electrical engineering. Electronics. Nuclear engineering
  TL Motor vehicles. Aeronautics. Astronautics
  TN Mining engineering
  TP Chemical technology
  TR Photography
  TS Manufactures
  TT Handicrafts. Arts and crafts
  TX Home economics

U Military Science     top

  U General
  UA  Armies
  UB  Military administration
  UC  Maintenance and transportation
  UD  Infantry
  UE  Cavalry. Armored cavalry
  UF  Artillery
  UG  Military engineering. Air forces. Air warfare
  UH  Other services

V Naval Science      top

  V General
  VA Navies
  VC Naval maintenance
  VD Naval seamen
  VE Marines
  VF Naval ordinance
  VG Minor services of navies
  VK Navigation. Merchant marine
  VM  Naval architecture. Marine engineering

Z Bibliography: Library Science     top

  Z  Books. Book industries. Library science. Bibliography

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Created by

J. Kinnie 12/00

This work is licensed under a Creative Commons Attribution 4.0 International License.