Classification
006 - Special computer methods
122
620 - Engineering & allied operations
59
745 - Decorative arts
51
000 - Computer science, information & general works
46
794 - Indoor games of skill
45
302 - Social interaction
39
700 - The arts; fine & decorative arts
37
600 - Technology
35
770 - Photography, photographs & computer art
30
900 - History & geography
20
777 - [Unassigned]
17
610 - Medicine & health
16
331 - Labor economics
15
333 - Economics of land & energy
15
140 - Specific philosophical schools
13
330 - Economics
11
500 - Natural sciences & mathematics
11
621 - Applied physics
11
363 - Other social problems & services
10
320 - Political science
8
580 - Plants (Botany)
8
576 - Genetics & evolution
7
005 - Computer programming, programs & data
6
720 - Architecture
6
380 - Commerce, communications & transportation
5
384 - Communications; telecommunication
5
658 - General management
5
340 - Law
4
510 - Mathematics
4
612 - Human physiology
4
670 - Manufacturing
4
100 - Philosophy & psychology
3
540 - Chemistry & allied sciences
3
624 - Civil engineering
3
776 - Computer art (Digital art)
3
791 - Public performances
3
370 - Education
2
530 - Physics
2
741 - Drawing & drawings
2
778 - Fields & kinds of photography
2
780 - Music
2
800 - Literature & rhetoric
2
820 - English & Old English literatures
2
004 - Data processing & computer science
1
230 - Christianity & Christian theology
1
270 - History of Christianity & Christian church
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
514 - Topology
1
551 - Geology, hydrology & meteorology
1
more ...