Classification
700 - The arts; fine & decorative arts
134
000 - Computer science, information & general works
129
600 - Technology
129
900 - History & geography
100
620 - Engineering & allied operations
98
333 - Economics of land & energy
93
340 - Law
77
500 - Natural sciences & mathematics
55
330 - Economics
52
515 - Analysis
46
320 - Political science
41
380 - Commerce, communications & transportation
40
530 - Physics
37
363 - Other social problems & services
33
576 - Genetics & evolution
32
820 - English & Old English literatures
27
610 - Medicine & health
25
551 - Geology, hydrology & meteorology
23
140 - Specific philosophical schools
20
580 - Plants (Botany)
16
414 - Phonology & phonetics
15
630 - Agriculture & related technologies
13
341 - Law of nations
12
540 - Chemistry & allied sciences
12
300 - Social sciences
10
510 - Mathematics
10
370 - Education
9
720 - Architecture
9
800 - Literature & rhetoric
9
100 - Philosophy & psychology
8
304 - Factors affecting social behavior
8
400 - Language
7
200 - Religion
5
410 - Linguistics
5
581 - Specific topics in natural history
5
658 - General management
5
170 - Ethics
4
940 - History of Europe
4
305 - Social groups
3
550 - Earth sciences
3
629 - Other branches of engineering
3
970 - History of North America
3
297 - Islam, Babism & Bahai Faith
2
301 - Sociology & anthropology
2
327 - International relations
2
519 - Probabilities & applied mathematics
2
145 - Sensationalism
1
155 - Differential & developmental psychology
1
158 - Applied psychology
1
303 - Social processes
1
more ...