Classification
100 - Philosophy & psychology
900 - History & geography
200 - Religion
284
320 - Political science
254
700 - The arts; fine & decorative arts
204
300 - Social sciences
193
800 - Literature & rhetoric
151
340 - Law
133
140 - Specific philosophical schools
108
330 - Economics
101
170 - Ethics
100
370 - Education
86
301 - Sociology & anthropology
77
610 - Medicine & health
64
400 - Language
62
530 - Physics
56
600 - Technology
53
410 - Linguistics
47
333 - Economics of land & energy
42
576 - Genetics & evolution
41
000 - Computer science, information & general works
38
120 - Epistemology, causation & humankind
35
297 - Islam, Babism & Bahai Faith
35
780 - Music
27
620 - Engineering & allied operations
26
363 - Other social problems & services
25
500 - Natural sciences & mathematics
23
380 - Commerce, communications & transportation
19
720 - Architecture
19
296 - Judaism
16
160 - Logic
13
304 - Factors affecting social behavior
12
581 - Specific topics in natural history
11
770 - Photography, photographs & computer art
8
901 - Philosophy & theory
8
361 - Social problems & social welfare in general
7
630 - Agriculture & related technologies
7
791 - Public performances
7
809 - History, description & criticism
6
520 - Astronomy & allied sciences
5
658 - General management
5
920 - Biography, genealogy & insignia
5
943 - Central Europe; Germany
5
540 - Chemistry & allied sciences
4
612 - Human physiology
4
111 - Ontology
3
414 - Phonology & phonetics
3
830 - Literatures of Germanic languages
3
880 - Hellenic literatures; classical Greek
3
907 - Education, research & related topics
3
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