Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
380 - Commerce, communications & transportation
25
700 - The arts; fine & decorative arts
23
600 - Technology
22
610 - Medicine & health
14
330 - Economics
13
363 - Other social problems & services
13
370 - Education
13
300 - Social sciences
10
320 - Political science
10
900 - History & geography
9
100 - Philosophy & psychology
8
333 - Economics of land & energy
7
551 - Geology, hydrology & meteorology
5
576 - Genetics & evolution
5
658 - General management
5
200 - Religion
4
400 - Language
4
581 - Specific topics in natural history
4
620 - Engineering & allied operations
4
301 - Sociology & anthropology
3
340 - Law
3
530 - Physics
3
800 - Literature & rhetoric
3
361 - Social problems & social welfare in general
2
630 - Agriculture & related technologies
2
770 - Photography, photographs & computer art
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
302 - Social interaction
1
304 - Factors affecting social behavior
1
410 - Linguistics
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
612 - Human physiology
1
720 - Architecture
1
780 - Music
1