Classification
100 - Philosophy & psychology
320 - Political science
79
900 - History & geography
42
330 - Economics
39
370 - Education
38
300 - Social sciences
33
140 - Specific philosophical schools
23
700 - The arts; fine & decorative arts
21
170 - Ethics
16
200 - Religion
16
120 - Epistemology, causation & humankind
15
340 - Law
13
333 - Economics of land & energy
10
380 - Commerce, communications & transportation
10
600 - Technology
9
400 - Language
7
301 - Sociology & anthropology
6
800 - Literature & rhetoric
6
000 - Computer science, information & general works
5
530 - Physics
5
576 - Genetics & evolution
5
780 - Music
5
363 - Other social problems & services
3
610 - Medicine & health
3
770 - Photography, photographs & computer art
3
160 - Logic
2
410 - Linguistics
2
581 - Specific topics in natural history
2
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
398 - Folklore
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
657 - Accounting
1
658 - General management
1
720 - Architecture
1
791 - Public performances
1