Genre
Problems, exercises, etc
217
Early works to 1800
214
Instructional television programs
214
Instructional films
195
Textbooks
188
History
149
Congresses
148
Conference papers and proceedings
104
Problems and exercises
98
Educational films
84
Juvenile literature
79
Nonfiction television programs
64
Popular works
63
Juvenile works
50
Periodicals
46
Biography
45
Study guides
40
Formulae
36
Handbooks, manuals, etc
33
Tables
31
Case studies
30
Miscellanea
30
Biographies
26
Legislative hearings
26
Legislative materials
26
Nonfiction films
24
Juvenile films
23
Children's television programs
22
Fiction television programs
22
Examinations
21
Examinations, questions, etc
21
Educational television programs
18
Fiction
17
Mathematical formulae
16
Documentary films
15
Trivia and miscellanea
15
Dictionaries
14
Bibliography
13
Filmed interviews
13
Children's films
12
Handbooks and manuals
12
Internet videos
12
Charts, diagrams, etc
11
Documentary television programs
11
Instructional and educational works
11
Statistics
11
Juvenile fiction
10
Short films
8
Academic theses
7
Early works
7
more ...