Library of Congress Call Number
C - Historical Sciences
20
H - Social Science
18
T - Technology
16
P - Language and Literature
10
B - Philosophy, Psychology, Religion
5
G - Geography, Anthropology, Recreation
4
D - World History
3
Z - Library Science
3
E - United States History
2
A - General Works
1
L - Education
1
M - Music
1
Q - Science
1