THE LIBRARY OF CONGRESS CLASSIFICATION SYSTEM

The books in this library are arranged on the shelves according to the library of congress classification system, which separates all knowledge into 21 classes, as outlined below.  Each class is identified by a letter of the alphabet, subclasses by combinations of letters, and subtopics within classes and subclasses by a numerical notation.

 A  GENERAL WORKS
(General encyclopedias, reference books,      periodicals, etc.)

B  PHILOSOPHY.RELIGION
BF Philosophy
BJ Ethics
BL-BX  Religion

C  HISTORY(ARCHAEOLOGY, HERALDRY)

D  HISTORY:GENERAL (EXCEPT AMERICA)
DA History, Great Britain
DC History, France
DD History, Germany
DE History, Ancient.Classical
DK History, Russia
DL History, Scandinavia
DS History, Far East
DT History, Africa

E   HISTORY, UNITED STATES (GENERAL)

F   HISTORY, U.S., LATIN AMERICA AND             CANADA

G  GEOGRAPHY
GB Physical Geography
GN Anthropology
GT Manners and Customs
GV Physical Education and    Recreation

H  SOCIAL SCIENCES
HA Statistics
HB Economic Theory
HC-D Economic History
HE Transportation and Communication
HF Commerce and Business
HG Finance
HM Sociology
HQ Marriage and Family
HV Police Science
HX Communism and Socialism

J   POLITICAL SCIENCE
JK U.S.Constitutional History
     JS Local Government

K   LAW

L   EDUCATION

M   MUSIC

N   FINE ARTS
NA Architecture
NB Sculpture
NC Graphic Arts
ND Painting
NK Ceramics

P   LANGUAGE AND LITERATURE
PE French, Spanish Language
PR English Literature
PS American Literature

Q   SCIENCE
QA Mathematics and Computer    Science
QB Astronomy
QC Physics
QD Chemistry
QE Geology
QH Biology
QK Botany
QL Zoology
QM Anatomy
QP Physiology
QR Microbiology

R   MEDICINE

S   AGRICULTURE

T   TECHNOLOGY
TA Engineering, Civil
TH Building & Construction
TJ Engineering,Mechanical     TK Engineering, Electrical and
Electronics
TL Motor Vehicles
TP Chemical Technology
TR Photography

U   MILITARY SCIENCE

V   NAVAL SCIENCE

Z   LIBRARY SCIENCE AND BIBLIOGRAPHY