Genre
Electronic books
2,581
Periodicals
1,076
Early works to 1800
591
Electronic journals
394
Handbooks, manuals, etc
262
Libros electronicos
212
Instructional films
145
Atlases
127
Congresses
123
Publicaciones periodicas
104
Case studies
98
Popular works
91
Educational films
82
Film excerpts
60
Electronic book
58
Documentary films
42
Biography
40
Filmed lectures
39
Nonfiction films
28
Film clips
22
Statistics
22
Formulae, receipts, prescriptions
19
Essays
18
Documentary television programs
15
Encyclopedias
15
Examinations, questions, etc
15
Television news programs
15
Dictionaries
13
Juvenile literature
13
Fiction
12
DVD-Video discs
11
Feature films
11
Filmed interviews
11
Statistics, Medical
11
Outlines, syllabi, etc
9
Code numbers
8
Dissertations
8
Letters
8
Terminology
8
Miscellanea
7
Advertisements
6
Broadsides
6
Educational television programs
6
Lectures
6
Bibliography
5
Classification
5
Cross-cultural studies
5
Drama
5
Interviews
5
Sources
5
more ...