Classification
780 - Music
2,625
320 - Political science
598
330 - Economics
579
346 - Private law
308
300 - Social sciences
226
830 - Literatures of Germanic languages
205
900 - History & geography
129
340 - Law
116
658 - General management
104
347 - Civil procedure & courts
69
200 - Religion
67
630 - Agriculture & related technologies
63
820 - English & Old English literatures
60
306 - Culture & institutions
40
302 - Social interaction
39
510 - Mathematics
35
650 - Management & auxiliary services
35
006 - Special computer methods
32
700 - The arts; fine & decorative arts
29
616 - Diseases
28
620 - Engineering & allied operations
28
800 - Literature & rhetoric
28
338 - Production
26
301 - Sociology & anthropology
22
004 - Data processing & computer science
21
332 - Financial economics
20
610 - Medicine & health
20
370 - Education
19
170 - Ethics
17
617 - Surgery & related medical specialties
17
100 - Philosophy & psychology
16
005 - Computer programming, programs & data
15
333 - Economics of land & energy
15
304 - Factors affecting social behavior
14
420 - English & Old English
14
621 - Applied physics
12
070 - News media, journalism & publishing
11
500 - Natural sciences & mathematics
11
530 - Physics
11
305 - Social groups
10
400 - Language
10
515 - Analysis
10
570 - Life sciences; biology
10
410 - Linguistics
9
600 - Technology
9
150 - Psychology
8
363 - Other social problems & services
8
618 - Gynecology, obstetrics, pediatrics & geriatrics
8
720 - Architecture
8
380 - Commerce, communications & transportation
7
more ...