Classification
900 - History & geography
700 - The arts; fine & decorative arts
36
320 - Political science
32
800 - Literature & rhetoric
30
400 - Language
24
410 - Linguistics
18
100 - Philosophy & psychology
16
140 - Specific philosophical schools
8
610 - Medicine & health
8
200 - Religion
7
300 - Social sciences
7
780 - Music
7
301 - Sociology & anthropology
6
304 - Factors affecting social behavior
6
600 - Technology
5
000 - Computer science, information & general works
4
363 - Other social problems & services
3
370 - Education
3
170 - Ethics
2
330 - Economics
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
576 - Genetics & evolution
2
770 - Photography, photographs & computer art
2
296 - Judaism
1
500 - Natural sciences & mathematics
1
530 - Physics
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
620 - Engineering & allied operations
1
720 - Architecture
1
791 - Public performances
1
809 - History, description & criticism
1
920 - Biography, genealogy & insignia
1