Classification
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
785
610 - Medicine & health
748
900 - History & geography
733
320 - Political science
509
330 - Economics
476
600 - Technology
443
000 - Computer science, information & general works
442
333 - Economics of land & energy
437
363 - Other social problems & services
377
300 - Social sciences
362
100 - Philosophy & psychology
328
340 - Law
287
380 - Commerce, communications & transportation
262
620 - Engineering & allied operations
255
370 - Education
211
170 - Ethics
205
800 - Literature & rhetoric
197
200 - Religion
192
301 - Sociology & anthropology
169
580 - Plants (Botany)
148
576 - Genetics & evolution
132
304 - Factors affecting social behavior
125
551 - Geology, hydrology & meteorology
120
400 - Language
112
500 - Natural sciences & mathematics
108
581 - Specific topics in natural history
106
410 - Linguistics
103
540 - Chemistry & allied sciences
81
720 - Architecture
81
630 - Agriculture & related technologies
58
658 - General management
54
612 - Human physiology
52
780 - Music
49
361 - Social problems & social welfare in general
44
530 - Physics
39
414 - Phonology & phonetics
36
615 - Pharmacology & therapeutics
31
297 - Islam, Babism & Bahai Faith
26
120 - Epistemology, causation & humankind
25
770 - Photography, photographs & computer art
14
590 - Animals (Zoology)
13
364 - Criminology
10
360 - Social problems & services; associations
9
350 - Public administration & military science
8
791 - Public performances
8
160 - Logic
7
520 - Astronomy & allied sciences
5
657 - Accounting
5
128 - Humankind
4
more ...