Classification
600 - Technology
700 - The arts; fine & decorative arts
13
620 - Engineering & allied operations
11
900 - History & geography
9
000 - Computer science, information & general works
8
140 - Specific philosophical schools
8
330 - Economics
6
333 - Economics of land & energy
6
363 - Other social problems & services
6
580 - Plants (Botany)
4
610 - Medicine & health
4
340 - Law
3
380 - Commerce, communications & transportation
3
320 - Political science
2
500 - Natural sciences & mathematics
2
576 - Genetics & evolution
2
658 - General management
2
370 - Education
1
530 - Physics
1
615 - Pharmacology & therapeutics
1
630 - Agriculture & related technologies
1
657 - Accounting
1
720 - Architecture
1
800 - Literature & rhetoric
1