Classification
200 - Religion
900 - History & geography
32
800 - Literature & rhetoric
13
320 - Political science
12
100 - Philosophy & psychology
11
300 - Social sciences
6
700 - The arts; fine & decorative arts
6
330 - Economics
5
000 - Computer science, information & general works
4
140 - Specific philosophical schools
4
301 - Sociology & anthropology
4
363 - Other social problems & services
4
370 - Education
4
380 - Commerce, communications & transportation
4
600 - Technology
4
361 - Social problems & social welfare in general
2
400 - Language
2
410 - Linguistics
2
581 - Specific topics in natural history
2
780 - Music
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
340 - Law
1
530 - Physics
1
620 - Engineering & allied operations
1
720 - Architecture
1