Genre
Electronic books
15,723
Periodicals
14,750
History
10,711
Statistics
6,129
Congresses
4,940
Conference papers and proceedings
3,593
Directories
2,967
Biography
2,080
Case studies
1,967
Handbooks, manuals, etc
1,769
Dictionaries
1,624
Biographies
1,279
Academic theses
1,113
Handbooks and manuals
1,080
Tables
1,011
Early works to 1800
1,002
Thèses et écrits académiques
944
Printed ephemera
720
Catalogs
502
Electronic journals
479
Academic Dissertation
467
Early works
463
dissertations
458
Sources
446
doctoral dissertations
431
masters theses
431
theses
431
Speeches in Congress
381
Legislative hearings
322
Broadsides
298
Technical reports
289
Hochschulschrift
270
Charts, diagrams, etc
266
Econometric models
258
Périodiques
255
Bibliography
239
Databases
239
Périodiques
234
Speeches
220
Autobiographies
211
Tables (Data)
209
Aufsatzsammlung
194
Electronic book
188
Problems, exercises, etc
183
Audiobooks
181
Government publications
180
Pictorial works
176
Interviews
169
Annual reports
161
Festschriften
158
more ...