Classification
200 - Religion
320 - Political science
900 - History & geography
330 - Economics
66
100 - Philosophy & psychology
61
300 - Social sciences
41
340 - Law
38
700 - The arts; fine & decorative arts
26
800 - Literature & rhetoric
22
297 - Islam, Babism & Bahai Faith
19
140 - Specific philosophical schools
18
576 - Genetics & evolution
18
301 - Sociology & anthropology
16
000 - Computer science, information & general works
14
380 - Commerce, communications & transportation
12
400 - Language
12
370 - Education
11
170 - Ethics
10
410 - Linguistics
9
296 - Judaism
8
333 - Economics of land & energy
8
363 - Other social problems & services
7
304 - Factors affecting social behavior
6
600 - Technology
6
610 - Medicine & health
6
780 - Music
5
120 - Epistemology, causation & humankind
3
530 - Physics
3
581 - Specific topics in natural history
3
720 - Architecture
3
943 - Central Europe; Germany
3
361 - Social problems & social welfare in general
2
398 - Folklore
2
630 - Agriculture & related technologies
2
160 - Logic
1
270 - History of Christianity & Christian church
1
284 - Protestants of Continental origin
1
322 - Relation of state to organized groups
1
360 - Social problems & services; associations
1
520 - Astronomy & allied sciences
1
901 - Philosophy & theory
1
937 - Italy & adjacent territories to 476
1
973 - United States
1