Library of Congress Call Number
T - Technology
43
J - Political Science
23
Q - Science
21
M - Music
18
P - Language and Literature
16
B - Philosophy, Psychology, Religion
5
H - Social Science
2
N - Fine Arts
2
Z - Library Science
2
A - General Works
1
C - Historical Sciences
1
D - World History
1
E - United States History
1
R - Medicine
1