Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
5
120 - Epistemology, causation & humankind
3
140 - Specific philosophical schools
9
170 - Ethics
200 - Religion
2
300 - Social sciences
3
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
3
340 - Law
6
363 - Other social problems & services
4
370 - Education
1
380 - Commerce, communications & transportation
3
500 - Natural sciences & mathematics
1
530 - Physics
2
576 - Genetics & evolution
3
580 - Plants (Botany)
581 - Specific topics in natural history
1
600 - Technology
7
610 - Medicine & health
13
620 - Engineering & allied operations
4
630 - Agriculture & related technologies
2
658 - General management
1
700 - The arts; fine & decorative arts
7
720 - Architecture
2
800 - Literature & rhetoric
2
900 - History & geography
3