Library of Congress Classification System

A	General Works Ae—Encyclopedias Ay—Yearbooks, Almanacs
B	Philosophy, Psychology, Religion
C	Auxiliary Sciences of History Cb-History of Civilization Cs-Genealogy
D	History: General & Old World Europe, Asia, Africa, Australia
E	History: America North America, United States General History
F	History: America United States Local History (by region, state), Canada, Dutch America, French America, Latin America, Caribbean, South America
G	Geography, Anthropology, Recreation
H	Social Sciences Ha—Statistics Hf—Commerce Hg—Finance Hm—Sociology Hq—Family, Marriage, Sexuality Ht—Communities, Classes Hv—Social & Public Welfare, Criminology
J	Political Science Js—Local Government Jx—International Law
K	Law
L	Education
M	Music & Books on Music
N	Fine Arts
P	Language & Literature
Q	Science Qa—Mathematics Qc—Physics Qd—Chemistry Qh—Biology
R	Medicine
S	Agriculture Sd—Forestry
T	Technology Ta—Engineering Td—Environmental Technology Tp—Chemical Technology
U	Military Science
V	Naval Science
Z	Library Science

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