Library of Congress Call Number
H - Social Science
91
T - Technology
53
Z - Library Science
27
Q - Science
21
S - Agriculture
16
R - Medicine
11
G - Geography, Anthropology, Recreation
10
J - Political Science
6
C - Historical Sciences
4
L - Education
3
E - United States History
2
K - Law
2
P - Language and Literature
2
U - Military Science
2
B - Philosophy, Psychology, Religion
1
F - General American History
1