Genre
Conference papers and proceedings
35,220
Legislative hearings
13,637
Biographies
12,833
Handbooks and manuals
10,888
Statistics
9,227
Legislative materials
8,969
Technical reports
6,910
Sound recordings
4,289
Bibliographies
3,798
Case studies
3,577
Congresses
3,577
Autobiographies
3,038
Dictionaries
2,850
Statutes and codes
2,697
Treaties
2,538
Catalogs
2,149
Literature
1,793
Illustrated works
1,487
Encyclopedias
1,443
Festschriften
1,439
Exhibition catalogs
1,390
Maps
1,347
Academic theses
1,342
Guidebooks
1,246
Directories
1,080
Atlases
1,021
Sources
790
Problems and exercises
779
Software
771
Drama
729
Textbooks
657
Personal correspondence
623
Census data
563
Databases
560
Personal narratives
559
Electronic government information
551
Poetry
550
Study guides
524
Examinations
499
Interviews
480
Trivia and miscellanea
467
Classification
418
Periodicals
406
Tables (Data)
383
Indexes
380
Cookbooks
378
Laboratory manuals
362
Picture books
348
Popular works
345
Translations into English
337
more ...