Classification
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
912
620 - Engineering & allied operations
853
320 - Political science
520
333 - Economics of land & energy
490
330 - Economics
433
800 - Literature & rhetoric
317
363 - Other social problems & services
262
000 - Computer science, information & general works
256
140 - Specific philosophical schools
239
380 - Commerce, communications & transportation
238
100 - Philosophy & psychology
204
720 - Architecture
187
300 - Social sciences
186
610 - Medicine & health
173
200 - Religion
145
576 - Genetics & evolution
145
400 - Language
140
340 - Law
136
580 - Plants (Botany)
130
780 - Music
117
370 - Education
112
410 - Linguistics
99
301 - Sociology & anthropology
82
500 - Natural sciences & mathematics
76
551 - Geology, hydrology & meteorology
67
630 - Agriculture & related technologies
54
414 - Phonology & phonetics
52
581 - Specific topics in natural history
47
770 - Photography, photographs & computer art
47
530 - Physics
43
304 - Factors affecting social behavior
40
540 - Chemistry & allied sciences
40
170 - Ethics
36
791 - Public performances
35
658 - General management
27
297 - Islam, Babism & Bahai Faith
17
361 - Social problems & social welfare in general
10
398 - Folklore
10
612 - Human physiology
10
120 - Epistemology, causation & humankind
8
943 - Central Europe; Germany
8
160 - Logic
7
520 - Astronomy & allied sciences
7
891 - East Indo-European & Celtic literatures
7
809 - History, description & criticism
6
830 - Literatures of Germanic languages
6
296 - Judaism
5
230 - Christianity & Christian theology
4
more ...