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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

     
 
   
 
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What is the IPL?

The Internet Public Library is a public library for the world wide web.
Students from a consortium of colleges and universities with programs in information science develop and maintain the IPL!
Here are some of the partners in the IPL Consortium. A complete list is found on the IPL Consortium page.

The iSchool at Drexel Florida State University College of Information
University of Illinois at Urbana-Champaign Graduate School of Library and Information Science Rutgers School of Communication and Information Studies University of North Carolina at Chapel Hill School of Information and Library Science University of Pittsburgh School of Information Sciences
Syracuse University School of Information The University of Texas at Austin - School of Information The Information School - University of Washington

The Internet Public Library is hosted by The iSchool at Drexel, College of Information Science and Technology,
with major support from the College of Information at Florida State University.