Classification
300 - Social sciences
900 - History & geography
320 - Political science
41
100 - Philosophy & psychology
35
700 - The arts; fine & decorative arts
30
800 - Literature & rhetoric
29
301 - Sociology & anthropology
28
200 - Religion
24
000 - Computer science, information & general works
16
140 - Specific philosophical schools
15
610 - Medicine & health
13
330 - Economics
11
363 - Other social problems & services
11
333 - Economics of land & energy
10
340 - Law
9
380 - Commerce, communications & transportation
9
400 - Language
9
370 - Education
7
576 - Genetics & evolution
7
600 - Technology
6
410 - Linguistics
5
297 - Islam, Babism & Bahai Faith
4
304 - Factors affecting social behavior
4
361 - Social problems & social welfare in general
4
364 - Criminology
4
720 - Architecture
4
170 - Ethics
3
360 - Social problems & services; associations
3
620 - Engineering & allied operations
3
780 - Music
3
120 - Epistemology, causation & humankind
2
296 - Judaism
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
791 - Public performances
2
398 - Folklore
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
770 - Photography, photographs & computer art
1