Materia
- European History 1000-1450 19
- Literary Theory 19
- Political Economy 19
- Psychology 19
- History of Philosophy 18
- Politics: General Interest 18
- Psychiatry and Clinical Psychology 18
- American History: General Interest 17
- Biblical Studies - New Testament 17
- Earth and Environmental Science: General Interest 17
- Middle East History 17
- Literary Texts 16
- Logic 16
- Printing and Publishing History 16
- Theoretical Physics and Mathematical Physics 16
- Archaeology of Europe and The Near and Middle East 15
- Engineering: General Interest 15
- Islam 15
- Judaism 15
- Philosophy of Science 15