Genre
History
1,462
Congresses
603
Conference papers and proceedings
494
Case studies
362
Criticism, interpretation, etc
264
Biography
196
Textbooks
154
Handbooks, manuals, etc
146
Biographies
134
Nonfiction television programs
132
Internet videos
121
Bibliography
110
Periodicals
100
Handbooks and manuals
88
Cross-cultural studies
85
Statistics
83
Congress
78
Legislative materials
63
Educational films
48
Bibliographies
42
Filmed lectures
42
Legislative hearings
37
Encyclopedias
35
Sources
35
Dictionaries
30
Interviews
29
Essays
27
Festschriften
26
Fiction
26
Academic theses
25
Study guides
23
Technical reports
23
e-books
23
Film excerpts
21
Autobiographies
20
Documentary films
20
Audiobooks
19
Early works to 1800
18
Examinations
16
Instructional television programs
16
Juvenile literature
16
Nonfiction films
16
Problems, exercises, etc
16
Aufsatzsammlung
14
Church history
14
Instructional films
14
Longitudinal studies
14
Livres audio
12
essays
12
Correspondence
11
more ...