Classification
100 - Philosophy & psychology
300 - Social sciences
400 - Language
410 - Linguistics
900 - History & geography
10
320 - Political science
9
301 - Sociology & anthropology
7
700 - The arts; fine & decorative arts
6
330 - Economics
5
370 - Education
5
333 - Economics of land & energy
4
780 - Music
4
000 - Computer science, information & general works
3
200 - Religion
3
576 - Genetics & evolution
3
600 - Technology
3
620 - Engineering & allied operations
3
800 - Literature & rhetoric
3
140 - Specific philosophical schools
2
380 - Commerce, communications & transportation
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
340 - Law
1
363 - Other social problems & services
1
658 - General management
1
770 - Photography, photographs & computer art
1