Materia
- Recreational Mathematics 32
- Language and Linguistics 31
- Engineering 29
- History of Ideas and Intellectual History 28
- European History after 1450 25
- Religion: General Interest 24
- Social and Population History 24
- Media 23
- Comparative Politics 22
- Computer Science 22
- Film 22
- Ancient History 21
- Mass Communication 21
- English Literature: General Interest 20
- Historical Geography 20
- American Studies 19
- British History 1066-1450 19
- British History: General Interest 19
- Earth and Environmental Sciences 18
- Statistics and Probability 18