Genre
Electronic books
3,267
Periodicals
367
Congresses
297
Documentary films
254
Documentary television programs
215
Juvenile literature
188
Electronic journals
138
Case studies
107
Nature television programs
107
Electronic book
105
Science television programs
74
Biography
63
Nonfiction television programs
63
Wildlife television programs
47
Educational films
45
Nonfiction films
45
Pictorial works
38
Environmental films
36
Short films
33
DVD-Video discs
31
Identification
26
Feature films
25
Textbooks
23
Classification
21
Cross-cultural studies
21
Encyclopedias
21
Popular works
21
Handbooks, manuals, etc
20
Guidebooks
17
Anecdotes
16
Poetry
16
Science films
14
Video recordings for the hearing impaired
14
Fiction
13
Maps
13
Educational television programs
12
Environmental television programs
12
Sources
12
Television news programs
10
History
8
Videocassettes
8
Dictionaries
7
Essays
7
Exhibitions
7
Forecasts
7
Panel discussions
7
Folklore
6
Internet videos
6
Juvenile fiction
6
Atlases
5
more ...