Classification
400 - Language
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
900 - History & geography
15
410 - Linguistics
9
140 - Specific philosophical schools
8
100 - Philosophy & psychology
6
320 - Political science
5
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
5
000 - Computer science, information & general works
4
301 - Sociology & anthropology
4
330 - Economics
4
363 - Other social problems & services
3
581 - Specific topics in natural history
3
610 - Medicine & health
3
780 - Music
3
120 - Epistemology, causation & humankind
2
200 - Religion
2
300 - Social sciences
2
304 - Factors affecting social behavior
2
600 - Technology
2
791 - Public performances
2
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
361 - Social problems & social welfare in general
1
370 - Education
1
520 - Astronomy & allied sciences
1
590 - Animals (Zoology)
1