Classification
P - Language and Literature
10,862
B - Philosophy, Psychology, Religion
145
Q - Science
124
K - Law
101
A - General Works
100
H - Social Science
77
D - World History
44
J - Political Science
29
L - Education
24
M - Music
22
N - Fine Arts
15
R - Medicine
12
S - Agriculture
10
G - Geography, Anthropology, Recreation
9
T - Technology
9
Z - Library Science
6
E - United States History
2
C - Historical Sciences
1
U - Military Science
1