Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
700 - The arts; fine & decorative arts
50
320 - Political science
44
600 - Technology
42
300 - Social sciences
38
900 - History & geography
36
200 - Religion
34
140 - Specific philosophical schools
30
370 - Education
28
330 - Economics
26
333 - Economics of land & energy
25
380 - Commerce, communications & transportation
24
400 - Language
23
170 - Ethics
21
610 - Medicine & health
19
340 - Law
18
363 - Other social problems & services
18
301 - Sociology & anthropology
16
800 - Literature & rhetoric
15
410 - Linguistics
12
500 - Natural sciences & mathematics
12
576 - Genetics & evolution
12
120 - Epistemology, causation & humankind
11
530 - Physics
8
620 - Engineering & allied operations
8
297 - Islam, Babism & Bahai Faith
7
581 - Specific topics in natural history
7
780 - Music
7
658 - General management
5
720 - Architecture
5
580 - Plants (Botany)
4
160 - Logic
3
364 - Criminology
3
551 - Geology, hydrology & meteorology
3
612 - Human physiology
3
630 - Agriculture & related technologies
3
791 - Public performances
3
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
2
520 - Astronomy & allied sciences
2
540 - Chemistry & allied sciences
2
770 - Photography, photographs & computer art
2
296 - Judaism
1
302 - Social interaction
1
590 - Animals (Zoology)
1