Classification
005 - Computer programming, programs & data
761
658 - General management
445
770 - Photography, photographs & computer art
322
000 - Computer science, information & general works
264
500 - Natural sciences & mathematics
242
006 - Special computer methods
206
331 - Labor economics
195
620 - Engineering & allied operations
184
330 - Economics
181
004 - Data processing & computer science
173
745 - Decorative arts
148
381 - Commerce
105
778 - Fields & kinds of photography
96
302 - Social interaction
90
771 - Techniques, equipment & materials
70
384 - Communications; telecommunication
67
374 - Adult education
52
650 - Management & auxiliary services
40
338 - Production
39
621 - Applied physics
39
300 - Social sciences
37
629 - Other branches of engineering
33
794 - Indoor games of skill
33
790 - Recreational & performing arts
30
670 - Manufacturing
28
153 - Mental processes & intelligence
20
741 - Drawing & drawings
20
158 - Applied psychology
18
600 - Technology
18
659 - Advertising & public relations
18
775 - Digital photography
17
519 - Probabilities & applied mathematics
15
380 - Commerce, communications & transportation
14
779 - Photographs
14
777 - [Unassigned]
11
332 - Financial economics
10
001 - Knowledge
9
791 - Public performances
9
510 - Mathematics
8
808 - Rhetoric & collections of literature
8
700 - The arts; fine & decorative arts
7
720 - Architecture
7
025 - Library operations
6
781 - General principles & musical forms
6
651 - Office services
5
688 - Other final products & packaging
5
011 - Bibliographies
4
303 - Social processes
4
343 - Military, tax, trade & industrial law
4
371 - Schools & their activities; special education
4
more ...