Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
2
170 - Ethics
2
300 - Social sciences
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
2
340 - Law
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
410 - Linguistics
1
530 - Physics
1
576 - Genetics & evolution
2
580 - Plants (Botany)
2
600 - Technology
3
610 - Medicine & health
2
620 - Engineering & allied operations
3
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
3
720 - Architecture
3
770 - Photography, photographs & computer art
1
780 - Music
1
800 - Literature & rhetoric
2
900 - History & geography