Classification
000 - Computer science, information & general works
600 - Technology
51
380 - Commerce, communications & transportation
41
700 - The arts; fine & decorative arts
29
900 - History & geography
25
400 - Language
20
320 - Political science
16
410 - Linguistics
16
330 - Economics
14
100 - Philosophy & psychology
13
140 - Specific philosophical schools
13
620 - Engineering & allied operations
11
370 - Education
10
300 - Social sciences
8
333 - Economics of land & energy
8
340 - Law
6
500 - Natural sciences & mathematics
6
170 - Ethics
5
720 - Architecture
5
800 - Literature & rhetoric
5
610 - Medicine & health
4
301 - Sociology & anthropology
3
363 - Other social problems & services
3
576 - Genetics & evolution
3
658 - General management
3
520 - Astronomy & allied sciences
2
540 - Chemistry & allied sciences
2
780 - Music
2
791 - Public performances
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
530 - Physics
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
657 - Accounting
1