Classification
340 - Law
320 - Political science
8,246
330 - Economics
7,654
900 - History & geography
1,724
700 - The arts; fine & decorative arts
860
300 - Social sciences
820
100 - Philosophy & psychology
462
610 - Medicine & health
409
200 - Religion
262
140 - Specific philosophical schools
257
576 - Genetics & evolution
243
000 - Computer science, information & general works
189
333 - Economics of land & energy
177
600 - Technology
170
400 - Language
166
380 - Commerce, communications & transportation
153
630 - Agriculture & related technologies
150
170 - Ethics
144
363 - Other social problems & services
144
370 - Education
126
364 - Criminology
122
620 - Engineering & allied operations
106
410 - Linguistics
105
800 - Literature & rhetoric
103
304 - Factors affecting social behavior
79
301 - Sociology & anthropology
57
500 - Natural sciences & mathematics
57
297 - Islam, Babism & Bahai Faith
49
361 - Social problems & social welfare in general
41
580 - Plants (Botany)
41
530 - Physics
38
551 - Geology, hydrology & meteorology
33
491 - East Indo-European & Celtic languages
29
658 - General management
26
350 - Public administration & military science
25
581 - Specific topics in natural history
22
720 - Architecture
22
414 - Phonology & phonetics
20
336 - Public finance
18
780 - Music
18
650 - Management & auxiliary services
15
344 - Labor, social, education & cultural law
14
120 - Epistemology, causation & humankind
10
791 - Public performances
10
346 - Private law
9
296 - Judaism
8
342 - Constitutional & administrative law
8
360 - Social problems & services; associations
8
540 - Chemistry & allied sciences
8
345 - Criminal law
6
more ...