Classification
770 - Photography, photographs & computer art
771 - Techniques, equipment & materials
455
006 - Special computer methods
447
778 - Fields & kinds of photography
405
000 - Computer science, information & general works
282
302 - Social interaction
171
620 - Engineering & allied operations
139
775 - Digital photography
123
777 - [Unassigned]
114
700 - The arts; fine & decorative arts
102
900 - History & geography
85
331 - Labor economics
64
791 - Public performances
60
745 - Decorative arts
37
500 - Natural sciences & mathematics
36
330 - Economics
34
779 - Photographs
30
100 - Philosophy & psychology
25
300 - Social sciences
20
384 - Communications; telecommunication
20
600 - Technology
20
800 - Literature & rhetoric
19
320 - Political science
16
780 - Music
15
140 - Specific philosophical schools
14
370 - Education
14
658 - General management
14
720 - Architecture
14
333 - Economics of land & energy
13
621 - Applied physics
11
610 - Medicine & health
10
741 - Drawing & drawings
10
304 - Factors affecting social behavior
9
363 - Other social problems & services
9
381 - Commerce
9
200 - Religion
7
400 - Language
7
781 - General principles & musical forms
7
380 - Commerce, communications & transportation
6
522 - Techniques, equipment & materials
6
170 - Ethics
5
301 - Sociology & anthropology
5
410 - Linguistics
5
576 - Genetics & evolution
5
630 - Agriculture & related technologies
5
153 - Mental processes & intelligence
4
297 - Islam, Babism & Bahai Faith
4
340 - Law
4
551 - Geology, hydrology & meteorology
4
580 - Plants (Botany)
4
more ...