Genre
Problems and exercises
31
Popular works
20
Trivia and miscellanea
12
Puzzles and games
9
Dictionaries
8
Examinations
5
Tables (Data)
5
Handbooks and manuals
4
Literature
4
Study guides
4
Early works to 1800
3
Fiction
3
Anecdotes
2
Bibliographies
2
Biographies
2
Conference papers and proceedings
2
Congresses
2
Encyclopedias
2
Humor
2
Instructional and educational works
2
Allegories
1
Alphabet books
1
Autobiographies
1
Bio-bibliography
1
Board books
1
Charts, diagrams, etc
1
Comics (Graphic works)
1
Constitution
1
Formulae
1
Graphic novels
1
Graphs
1
Juvenile works
1
Picture books
1
Programmed instructional materials
1
Reference works
1
Sources
1
Statistics
1