The Library of Congress Classification Scheme

The Library uses the Library of Congress (LC) Classification Scheme to classify library materials. The Library of Congress in Washington D.C., from which the LC Classification System is derived, is the largest national library in the world.

Class Subject
A   GENERAL WORKS
B   PHILOSOPHY, PSYCHOLOGY, RELIGION
  B-BJ Philosophy, Psychology
  BL-BX Religion
C   AUXILIARY SCIENCES OF HISTORY
  CT Biography
D   HISTORY (Other than American)
E   HISTORY - U.S. - General
F   HISTORY - U.S. (Local), Canada, Latin America
G   GEOGRAPHY, ANTHROPOLOGY, RECREATION
H   SOCIAL SCIENCES
  HA Statistics
  HB Economic Theory
  HC Economic History and Conditions : National Production and Economic Conditions by Country; Environmental Policy
  HD Economic History and Conditions by Industry; Labor
  HE Transportation and Communication
  HF Commerce, Business and Management including Accountancy and Industrial Psychology
  HG Finance including : Money, Banking, Investment, Insurance
  HJ Public Finance including Taxation
  HM Sociology
  HN Social History and Conditions, Social Problems, Social Reform
  HQ Social Groups : Family, Marriage, Woman
  HV Social Pathology, Social and Public Welfare, Criminology
J   POLITICS AND GOVERNMENT
  JX & KZ International Law
K   Law (General)
  KD Law of the United Kingdom and Ireland
  KE Law of Canada
  KF Law of the United States
  KNN Law of China (pre-PRC)
  KNP Law of Taiwan
  KNQ Law of PRC
  KNR & KYQ Law of Hong Kong
  KU & KYT Law of Australia and New Zealand
L   EDUCATION
  LB Theory and Practice of Education : Teaching, Teacher Training, School Administration and Organization
M   MUSIC
N   FINE ARTS
P   LANGUAGE AND LITERATURE
  PL Language and Literature of Eastern Asia, Africa, Oceania
  PR English Literature
  PS American Literature (General works on translations are classed : PN241)
Q   SCIENCE (General)
  QA Mathematics, Computing Science (Software)
  QB Astronomy
  QC Physics
  QD Chemistry
  QE Geology
  QH Natural History - General, Biology - General, Ecology
  QK Botany
  QL Zoology
  QM Human Anatomy
  QP Physiology
  QR Microbiology
R   MEDICINE
S   AGRICULTURE
T   ENGINEERING AND TECHNOLOGY
  TA Civil Engineering
  TD Environmental Technology
  TE Highway Engineering, Roads and Pavements
  TF Railroad Engineering and Operation
  TG Bridge Engineering
  TH Building Construction
  TJ Mechanical Engineering
  TK Electrical Engineering, Electronics, Computing Science (Hardware)
  TP Chemical Technology
  TR Photography
  TS Manufactures
U   MILITARY SCIENCE
V   NAVAL SCIENCE
Z   BIBLIOGRAPHY AND LIBRARY SCIENCE