Professors Are from Mars®, Students Are from Snickers®: How to Write and Deliver Humor in the Classroom and in Professional Presentations Paperback – May 1, 2003 by Ronald A. Berk
Chicken Soup for the Soul: Cartoons for Teachers Paperback – April 27, 2004 by Jack Canfield (Author), Mark Victor Hansen (Author), John McPherson (Author) More than 200 cartoons from syndicated