Library of Congress Call Number
T - Technology
259
Q - Science
131
H - Social Science
78
B - Philosophy, Psychology, Religion
47
Z - Library Science
42
J - Political Science
21
L - Education
20
D - World History
18
P - Language and Literature
16
E - United States History
15
G - Geography, Anthropology, Recreation
14
U - Military Science
10
C - Historical Sciences
8
F - General American History
4
N - Fine Arts
4
K - Law
3
A - General Works
2
R - Medicine
2
M - Music
1
V - Naval Science
1