Classification
301 - Sociology & anthropology
700 - The arts; fine & decorative arts
300 - Social sciences
88
900 - History & geography
81
320 - Political science
44
140 - Specific philosophical schools
42
100 - Philosophy & psychology
34
363 - Other social problems & services
34
200 - Religion
31
330 - Economics
24
000 - Computer science, information & general works
22
370 - Education
21
600 - Technology
21
610 - Medicine & health
17
380 - Commerce, communications & transportation
14
304 - Factors affecting social behavior
12
333 - Economics of land & energy
12
780 - Music
12
340 - Law
11
400 - Language
11
720 - Architecture
11
800 - Literature & rhetoric
11
581 - Specific topics in natural history
10
410 - Linguistics
8
170 - Ethics
7
576 - Genetics & evolution
7
620 - Engineering & allied operations
7
297 - Islam, Babism & Bahai Faith
6
530 - Physics
6
630 - Agriculture & related technologies
6
120 - Epistemology, causation & humankind
5
160 - Logic
3
361 - Social problems & social welfare in general
3
520 - Astronomy & allied sciences
3
364 - Criminology
2
398 - Folklore
2
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
2
770 - Photography, photographs & computer art
2
791 - Public performances
2
230 - Christianity & Christian theology
1
233 - Humankind
1
296 - Judaism
1
360 - Social problems & services; associations
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
590 - Animals (Zoology)
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
more ...