Classification
700 - The arts; fine & decorative arts
800 - Literature & rhetoric
900 - History & geography
600 - Technology
10
333 - Economics of land & energy
9
620 - Engineering & allied operations
8
363 - Other social problems & services
5
720 - Architecture
5
000 - Computer science, information & general works
4
380 - Commerce, communications & transportation
4
140 - Specific philosophical schools
3
610 - Medicine & health
3
170 - Ethics
2
300 - Social sciences
2
330 - Economics
2
340 - Law
2
370 - Education
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
630 - Agriculture & related technologies
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
500 - Natural sciences & mathematics
1
658 - General management
1