Genre
Conference papers and proceedings
34,924
Fiction
32,903
Sound recordings
28,537
Video recordings
25,949
Internet videos
23,310
Maps
21,870
Dictionaries
16,942
Periodicals
14,374
Legislative hearings
13,575
Biographies
13,259
Statistics
12,916
Handbooks and manuals
11,771
Bibliographies
10,454
Legislative materials
8,957
Technical reports
6,904
Congresses
3,732
Scores
3,635
Case studies
3,545
Topographic maps
3,326
Autobiographies
3,054
Operas
2,970
Drama
2,752
Statutes and codes
2,695
Instructional television programs
2,673
Excerpts
2,659
Treaties
2,580
Catalogs
2,445
Literature
2,208
Illustrated works
1,799
Directories
1,597
Encyclopedias
1,465
Festschriften
1,446
Picture books
1,439
Exhibition catalogs
1,416
Academic theses
1,357
Guidebooks
1,323
Atlases
1,260
Serial publications
1,233
Databases
1,225
Songs
1,218
Feature films
1,174
Nonfiction television programs
1,162
Poetry
1,116
Novels
990
Video recordings for the hearing impaired
973
Symphonies
955
Concertos
906
Sources
829
Educational films
823
Problems and exercises
783
more ...