Materia
- Regional and World History: General Interest 13
- Global History 12
- African Studies 11
- Physics And Astronomy 11
- European Studies 10
- Psychology 10
- Language and Linguistics 9
- European History after 1450 8
- Anthropology 7
- History of Native American Peoples 7
- History of Science: General Interest 7
- Sociology 7
- Earth and Environmental Sciences 6
- Economic History 6
- Engineering 6
- General Science 6
- Medicine 6
- Asian Studies 5
- Archaeology 4
- Drama and Theatre 4