Classification
320 - Political science
330 - Economics
59,196
340 - Law
7,238
900 - History & geography
6,621
300 - Social sciences
5,862
630 - Agriculture & related technologies
2,298
700 - The arts; fine & decorative arts
1,379
576 - Genetics & evolution
1,327
370 - Education
600
200 - Religion
557
170 - Ethics
298
800 - Literature & rhetoric
238
610 - Medicine & health
224
100 - Philosophy & psychology
168
500 - Natural sciences & mathematics
158
160 - Logic
117
600 - Technology
87
400 - Language
78
140 - Specific philosophical schools
70
720 - Architecture
68
780 - Music
47
920 - Biography, genealogy & insignia
15
000 - Computer science, information & general works
14
530 - Physics
13
550 - Earth sciences
12
332 - Financial economics
11
336 - Public finance
7
296 - Judaism
5
520 - Astronomy & allied sciences
5
338 - Production
4
266 - Missions
3
297 - Islam, Babism & Bahai Faith
3
301 - Sociology & anthropology
3
364 - Criminology
3
380 - Commerce, communications & transportation
3
333 - Economics of land & energy
2
337 - International economics
2
343 - Military, tax, trade & industrial law
2
382 - International commerce
2
603 - Dictionaries & encyclopedias
2
657 - Accounting
2
917 - Geography of & travel in North America
2
258 - [Unassigned]
1
304 - Factors affecting social behavior
1
325 - International migration & colonization
1
326 - Slavery & emancipation
1
331 - Labor economics
1
335 - Socialism & related systems
1
345 - Criminal law
1
347 - Civil procedure & courts
1
more ...