Classification
H - Social Science
24
B - Philosophy, Psychology, Religion
20
M - Music
18
A - General Works
15
F - General American History
11
T - Technology
5
Z - Library Science
5
P - Language and Literature
4
D - World History
3
L - Education
2
N - Fine Arts
2
R - Medicine
2
K - Law
1
Q - Science
1
S - Agriculture
1