Classification
100 - Philosophy & psychology
320 - Political science
136
900 - History & geography
135
200 - Religion
133
300 - Social sciences
110
700 - The arts; fine & decorative arts
79
170 - Ethics
71
370 - Education
66
610 - Medicine & health
50
301 - Sociology & anthropology
39
140 - Specific philosophical schools
36
400 - Language
36
340 - Law
32
333 - Economics of land & energy
31
120 - Epistemology, causation & humankind
30
800 - Literature & rhetoric
27
600 - Technology
25
330 - Economics
23
000 - Computer science, information & general works
19
530 - Physics
19
297 - Islam, Babism & Bahai Faith
18
363 - Other social problems & services
15
410 - Linguistics
12
576 - Genetics & evolution
10
380 - Commerce, communications & transportation
9
780 - Music
9
296 - Judaism
8
160 - Logic
7
304 - Factors affecting social behavior
7
581 - Specific topics in natural history
7
620 - Engineering & allied operations
5
364 - Criminology
4
551 - Geology, hydrology & meteorology
4
361 - Social problems & social welfare in general
3
500 - Natural sciences & mathematics
3
580 - Plants (Botany)
3
630 - Agriculture & related technologies
2
154 - Subconscious & altered states
1
360 - Social problems & services; associations
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
612 - Human physiology
1
658 - General management
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
791 - Public performances
1