Genre
History
13,335
Case studies
6,000
Legislative materials
4,104
Congresses
3,962
Biography
3,112
Conference papers and proceedings
2,893
Statistics
2,584
Periodicals
2,029
Handbooks, manuals, etc
1,862
Early works to 1800
1,841
Biographies
1,750
Audiobooks
1,405
Nonfiction films
1,142
Handbooks and manuals
1,085
Documentary films
875
Cross-cultural studies
791
Broadsides
709
Juvenile literature
568
Internet videos
532
Livres audio
520
Study guides
422
Interviews
404
Sources
397
Textbooks
365
Nonfiction television programs
364
Autobiographies
297
Problems, exercises, etc
285
Encyclopedias
269
Criticism, interpretation, etc
266
Dictionaries
255
Problems and exercises
214
Academic theses
193
Directories
191
Feature films
189
Instructional films
185
Juvenile works
182
Bibliography
167
Statistics, Medical
159
Pictorial works
153
e-books
151
Examinations, questions, etc
149
Popular works
148
Rules and practice
147
Legislative histories
146
Longitudinal studies
140
Statistics, Vital
133
Congress
132
Examinations
121
Anecdotes
120
Legislative hearings
118
more ...