Classification
100 - Philosophy & psychology
170 - Ethics
140 - Specific philosophical schools
26
320 - Political science
18
900 - History & geography
18
200 - Religion
17
700 - The arts; fine & decorative arts
8
120 - Epistemology, causation & humankind
6
300 - Social sciences
6
340 - Law
6
600 - Technology
6
800 - Literature & rhetoric
6
000 - Computer science, information & general works
4
330 - Economics
4
333 - Economics of land & energy
4
363 - Other social problems & services
4
370 - Education
4
410 - Linguistics
4
610 - Medicine & health
4
380 - Commerce, communications & transportation
3
301 - Sociology & anthropology
2
304 - Factors affecting social behavior
2
400 - Language
2
581 - Specific topics in natural history
2
160 - Logic
1
296 - Judaism
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1
770 - Photography, photographs & computer art
1
780 - Music
1
880 - Hellenic literatures; classical Greek
1