Classification
170 - Ethics
400 - Language
100 - Philosophy & psychology
14
140 - Specific philosophical schools
9
320 - Political science
8
120 - Epistemology, causation & humankind
6
200 - Religion
6
900 - History & geography
6
340 - Law
5
410 - Linguistics
5
700 - The arts; fine & decorative arts
4
370 - Education
3
380 - Commerce, communications & transportation
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
530 - Physics
2
576 - Genetics & evolution
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
800 - Literature & rhetoric
2
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
600 - Technology
1
780 - Music
1