Publishing History

This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.  This graph charts editions published on this subject.
Editions Published
Year of Publication


Prolific Authors

who have written the most books on this subject
Riddleland, 86 books
Michael Dahl, 60 books
Gengsheng Bai, 50 books
Pam Rosenberg, 39 books
Rick Walton, 29 books
Katy Hall, 29 books
Charles Keller, 27 books
Charles M. Schulz, 27 books
Mike Thaler, 22 books
Joseph Rosenbloom, 22 books
Chantel de Sousa, 22 books
Bathroom Readers' Institute, 19 books
Louis Phillips, 18 books
Patrick Girouard, 17 books
Rob Elliott, 17 books
Sam Schultz, 15 books
David Lewman, 14 books
Des MacHale, 14 books
Gene Perret, 13 books
Viki Woodworth, 13 books
Sylvie Stewart, 13 books
Joanne E. Bernstein, 13 books
Holly Kowitt, 12 books
Evan Esar, 12 books
Jim Davis, 12 books


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