Classification
D - World History
25
E - United States History
16
K - Law
14
H - Social Science
13
B - Philosophy, Psychology, Religion
12
P - Language and Literature
10
J - Political Science
9
Q - Science
7
N - Fine Arts
4
T - Technology
4
A - General Works
2
R - Medicine
2
Z - Library Science
2
F - General American History
1
G - Geography, Anthropology, Recreation
1
L - Education
1