The books in the NOVA libraries are arranged on the shelves according to the Library of Congress Classification System, which separates knowledge into 21 main 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, etc.)
B PHILOSOPHY, PSYCHOLOGY, RELIGION
B Philosophy (General)
BF Psychology
BJ Ethics
BL Religions, Mythology
BM Judaism
BP Islam, Bahaism, Theosophy
BQ Buddhism
BR-BX Christianity
C AUXILIARY SCIENCES OF HISTORY
CB History of Civilization
CC Archaeology
CS Genealogy
CT Biography (Collective
biography)
D HISTORY: GENERAL (EXCEPT
DA Great
DE-DF Greco-Roman
World
DK Russia, Former Soviet
Union/Republics
DP Spain,
DT Africa
DU Oceania (
E HISTORY:
F HISTORY:
G GEOGRAPHY, ANTHROPOLOGY, RECREATION
GB Physical Geography
GC Oceanography
GE Environmental Sciences
GN Anthropology
GR Folklore
GT Manners and Customs
GV Recreation, Leisure,
Sports
H SOCIAL SCIENCES
HA Statistics
HB-HC Economic
Theory and History
HD Industries, Land Use,
Labor
HE Transportation and Communications
HF Commerce, Business, Accounting
HG Finance
HM Sociology (General)
HQ Family, Marriage
HV Public Welfare, Criminology,
Police Science
HX Socialism, Communism,
Anarchism
J POLITICAL SCIENCE
JK
JS Local Government
JX-JZ International
Organizations & Relations
K LAW
L EDUCATION
M MUSIC
N FINE ARTS
NA
Architecture
NB Sculpture
NC Drawing, Design, Illustration
ND Painting
NK Decorative Arts
P LANGUAGE AND LITERATURE
P
Philology, Communication, Linguistics
PA Greek and Latin Languages and Literatures
PC French and Spanish Languages
PE English Language
PG Slavic Languages and Literatures
PJ Eastern Languages and Literatures
PL Asian and African Languages and Literatures
PQ French and Spanish Literatures
PR English Literature
PS
PT German and Scandinavian Literatures
Q SCIENCE
QA
Mathematics and Computer Science
QB Astronomy
QC Physics
QD Chemistry
QE Geology
QH Biology
QK Botany
QL Zoology
QM-QP Human Anatomy and Physiology
QR Microbiology
R MEDICINE
S AGRICULTURE
T TECHNOLOGY
TA
Engineering (General), Civil Engineering
TH Building Construction
TJ Mechanical Engineering and Machinery
TK Electronics, Telecommunication,
Electrical Engineering, Networks (Computer)
TL Motor Vehicles, Aeronautics, Astronautics
TR Photography
TX Home Economics
U MILITARY SCIENCE
V NAVAL SCIENCE
Z LIBRARY SCIENCE AND BIBLIOGRAPHY