Classification
320 - Political science
51
300 - Social sciences
42
100 - Philosophy & psychology
37
900 - History & geography
29
301 - Sociology & anthropology
21
370 - Education
14
306 - Culture & institutions
13
700 - The arts; fine & decorative arts
13
170 - Ethics
8
800 - Literature & rhetoric
8
194 - Philosophy of France
6
200 - Religion
6
330 - Economics
6
610 - Medicine & health
6
140 - Specific philosophical schools
5
340 - Law
5
600 - Technology
5
304 - Factors affecting social behavior
4
305 - Social groups
4
791 - Public performances
4
307 - Communities
3
361 - Social problems & social welfare in general
3
400 - Language
3
500 - Natural sciences & mathematics
3
720 - Architecture
3
120 - Epistemology, causation & humankind
2
121 - Epistemology
2
180 - Ancient, medieval & eastern philosophy
2
302 - Social interaction
2
327 - International relations
2
341 - Law of nations
2
363 - Other social problems & services
2
365 - Penal & related institutions
2
378 - Higher education
2
530 - Physics
2
576 - Genetics & evolution
2
581 - Specific topics in natural history
2
111 - Ontology
1
142 - Critical philosophy
1
149 - Other philosophical systems
1
150 - Psychology
1
190 - Modern western philosophy
1
280 - Christian denominations & sects
1
297 - Islam, Babism & Bahai Faith
1
303 - Social processes
1
323 - Civil & political rights
1
331 - Labor economics
1
333 - Economics of land & energy
1
338 - Production
1
364 - Criminology
1
more ...