Classification
000 - Computer science, information & general works
745 - Decorative arts
211
331 - Labor economics
133
658 - General management
133
500 - Natural sciences & mathematics
95
620 - Engineering & allied operations
71
770 - Photography, photographs & computer art
68
700 - The arts; fine & decorative arts
62
330 - Economics
61
600 - Technology
44
333 - Economics of land & energy
38
610 - Medicine & health
37
006 - Special computer methods
28
384 - Communications; telecommunication
27
380 - Commerce, communications & transportation
26
363 - Other social problems & services
25
374 - Adult education
24
580 - Plants (Botany)
23
741 - Drawing & drawings
21
140 - Specific philosophical schools
20
338 - Production
20
381 - Commerce
20
576 - Genetics & evolution
19
540 - Chemistry & allied sciences
18
791 - Public performances
18
720 - Architecture
14
900 - History & geography
14
302 - Social interaction
11
551 - Geology, hydrology & meteorology
11
001 - Knowledge
10
530 - Physics
10
630 - Agriculture & related technologies
10
300 - Social sciences
9
777 - [Unassigned]
9
414 - Phonology & phonetics
8
621 - Applied physics
8
771 - Techniques, equipment & materials
7
519 - Probabilities & applied mathematics
6
650 - Management & auxiliary services
6
011 - Bibliographies
5
581 - Specific topics in natural history
5
153 - Mental processes & intelligence
4
332 - Financial economics
4
370 - Education
4
400 - Language
4
612 - Human physiology
4
740 - Drawing & decorative arts
4
158 - Applied psychology
3
320 - Political science
3
781 - General principles & musical forms
3
more ...