Genre
Electronic books
1,420
Congresses
184
Documentary films
89
Handbooks, manuals, etc
88
Documentary television programs
74
Periodicals
62
Juvenile literature
52
Electronic book
50
Early works to 1800
42
Case studies
38
Libros electronicos
37
Television news programs
30
Amateurs' manuals
25
Biography
20
Short films
18
Designs and plans
17
Electronic journals
16
Fiction
16
Instructional television programs
15
Non-fiction television programs
14
Pictorial works
13
DVD-Video discs
12
Exhibitions
12
Nonfiction films
12
Videocassettes
11
Nonfiction television programs
9
Educational films
8
Specifications
8
Video recordings for the hearing impaired
8
Popular works
7
Television mini-series
7
Feature films
6
Textbooks
6
Travelogues (Television programs)
6
Documentary
5
Drama
5
Filmed lectures
5
Interviews
5
Problems, exercises, etc
5
Study guides
5
Historical fiction
4
Instructional films
4
Letters
4
Archives
3
Domestic fiction
3
Educational television programs
3
Historical television programs
3
History
3
Sources
3
Biographical films
2
more ...