Genre
Technical reports
2,713
Biographies
2,071
Statistics
1,433
Handbooks and manuals
1,372
Conference papers and proceedings
934
Periodicals
821
Autobiographies
388
Congresses
269
Case studies
223
Bibliographies
219
Sources
218
Literature
186
Directories
150
Illustrated works
147
Catalogs
135
Longitudinal studies
127
Personal narratives
124
Databases
109
Dictionaries
109
Encyclopedias
93
Personal correspondence
73
Abstracts
68
Video recordings
61
Sound recordings
57
Exhibition catalogs
51
Guidebooks
51
Pictures
48
Diaries
45
Chronologies
43
Trivia and miscellanea
42
Fiction
41
Academic theses
39
Correspondence
39
Posters
39
Serial publications
39
Interviews
37
Maps
36
Anecdotes
34
Picture books
34
Electronic government information
33
History
24
Portraits
24
Cross-cultural studies
23
Legends
21
Reference works
21
Laboratory manuals
20
Annual reports
19
Power electronics (Music)
19
Treaties
19
Documentary films
18
more ...