Genre
History
12,708
Case studies
5,886
Periodicals
5,516
Legislative materials
4,104
Congresses
3,568
Biography
3,046
Statistics
2,584
Conference papers and proceedings
2,542
Early works to 1800
1,811
Handbooks, manuals, etc
1,788
Biographies
1,716
Audiobooks
1,359
Nonfiction films
1,127
Handbooks and manuals
1,046
Documentary films
859
Cross-cultural studies
782
Broadsides
695
Juvenile literature
561
Internet videos
538
Livres audio
513
Study guides
412
Interviews
377
Sources
373
Nonfiction television programs
366
Textbooks
328
Autobiographies
296
Encyclopedias
269
Problems, exercises, etc
262
Criticism, interpretation, etc
249
Dictionaries
237
Problems and exercises
198
Directories
196
Feature films
188
Instructional films
188
Juvenile works
182
Bibliography
171
Academic theses
165
Statistics, Medical
160
Pictorial works
148
Rules and practice
147
Examinations, questions, etc
146
Legislative histories
146
e-books
145
Longitudinal studies
139
Statistics, Vital
134
Popular works
133
Congress
132
Examinations
120
Anecdotes
118
Legislative hearings
118
more ...