Genre
Textbooks for foreign speakers
25
Textbooks
17
Electronic books
11
for foreign speakers
10
Readers
7
for English speakers
7
Readers (Publications)
5
Handbooks and manuals
2
Handbooks, manuals, etc
2
Biography
1
Conversation and phrase books
1
Problems and exercises
1
Problems, exercises, etc
1
Textbooks for second language learners
1
e-books
1