Classification
100 - Philosophy & psychology
170 - Ethics
900 - History & geography
140 - Specific philosophical schools
40
200 - Religion
30
800 - Literature & rhetoric
16
320 - Political science
15
410 - Linguistics
11
700 - The arts; fine & decorative arts
10
300 - Social sciences
9
370 - Education
9
340 - Law
8
120 - Epistemology, causation & humankind
7
301 - Sociology & anthropology
6
330 - Economics
6
600 - Technology
6
610 - Medicine & health
6
363 - Other social problems & services
4
000 - Computer science, information & general works
3
333 - Economics of land & energy
2
361 - Social problems & social welfare in general
2
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
2
520 - Astronomy & allied sciences
2
530 - Physics
2
581 - Specific topics in natural history
2
780 - Music
2
880 - Hellenic literatures; classical Greek
2
001 - Knowledge
1
128 - Humankind
1
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
400 - Language
1
580 - Plants (Botany)
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1
791 - Public performances
1