Library of Congress Classification System – ipl A+ Research & Writing

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Library of Congress Classification System

Main Classes Subclasses
A – General Works AE – Encyclopedias
AI – Indexes
AN – Newspapers
AP – Periodicals
B – Philosophy, Psychology B-BD – Philosophy
BF – Psychology
BH – Esthetics
BJ – Ethics
BL-BX – Religions, Mythology
C – History (Auxiliary sciences: archaeology, genealogy, etc.) (various)
D – History (except America) DA – Great Britain
DC – France
DD – Germany
DK – Russia
DS – Asia
DT – Africa
E-F – America and U. S. F1-F970 – United States
F1201-F3899 – Latin America
G – Geography, Anthropology G-GF – Geography, Travel, Atlases
GN – Anthropology, Ethnography
GR – Folklore
GV – Sports
H – Social Sciences HA-HJ – Economics
HM-HQ – Sociology
HX – Communism, Socialism, Anarchism
J – Political Science  
K – Law  
L – Education  
M – Music ML – Literature of Music
MT – Musical Instruction
N – Fine Arts NA – Architecture
NB – Sculpture & Related Arts
NC – Graphic Arts
ND – Painting
NK – Applied Arts
NX – The arts in general
P – Language and Literature PA – Classical Philology
PB-PH – Modern European Languages
PJ-PL – Oriental Languages
PQ – Romance Literatures
PR – English Literature
PS – American Literature
PT – German Literature
Q – Science QA – Mathematics
QB – Astronomy
QC – Physics
QD – Chemistry
QE – Geology
QH – Natural History
QK – Botany
QL – Zoology
QM – Human Anatomy
QP – Physiology
QR – Bacteriology
R – Medicine (various)
S – Agriculture (various)
U – Military Science  
V – Naval Science  
T – Technology & Engineering (various)
Z – Bibliography & Library Science  


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A+ Research & Writing for high school and college students was created by Kathryn L. Schwartz