Classification
300 - Social sciences
700 - The arts; fine & decorative arts
320 - Political science
111
900 - History & geography
98
100 - Philosophy & psychology
70
301 - Sociology & anthropology
64
363 - Other social problems & services
61
600 - Technology
61
140 - Specific philosophical schools
53
330 - Economics
52
370 - Education
49
000 - Computer science, information & general works
45
333 - Economics of land & energy
38
200 - Religion
31
610 - Medicine & health
30
720 - Architecture
26
380 - Commerce, communications & transportation
25
780 - Music
25
800 - Literature & rhetoric
25
304 - Factors affecting social behavior
22
620 - Engineering & allied operations
21
340 - Law
20
170 - Ethics
19
400 - Language
17
551 - Geology, hydrology & meteorology
15
576 - Genetics & evolution
12
630 - Agriculture & related technologies
12
120 - Epistemology, causation & humankind
10
500 - Natural sciences & mathematics
10
770 - Photography, photographs & computer art
10
581 - Specific topics in natural history
9
361 - Social problems & social welfare in general
8
410 - Linguistics
8
580 - Plants (Botany)
8
530 - Physics
5
540 - Chemistry & allied sciences
5
658 - General management
5
360 - Social problems & services; associations
4
364 - Criminology
4
414 - Phonology & phonetics
4
791 - Public performances
4
612 - Human physiology
3
160 - Logic
2
297 - Islam, Babism & Bahai Faith
2
350 - Public administration & military science
2
520 - Astronomy & allied sciences
1
650 - Management & auxiliary services
1
657 - Accounting
1