Classification
100 - Philosophy & psychology
200 - Religion
900 - History & geography
140 - Specific philosophical schools
15
320 - Political science
14
170 - Ethics
12
700 - The arts; fine & decorative arts
11
800 - Literature & rhetoric
11
301 - Sociology & anthropology
10
410 - Linguistics
7
297 - Islam, Babism & Bahai Faith
6
340 - Law
6
300 - Social sciences
5
363 - Other social problems & services
4
000 - Computer science, information & general works
3
530 - Physics
3
576 - Genetics & evolution
3
610 - Medicine & health
3
120 - Epistemology, causation & humankind
2
296 - Judaism
2
330 - Economics
2
370 - Education
2
380 - Commerce, communications & transportation
2
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
520 - Astronomy & allied sciences
1
581 - Specific topics in natural history
1
600 - Technology
1
620 - Engineering & allied operations
1
780 - Music
1
920 - Biography, genealogy & insignia
1