"Now in full color"

Title page. -"Bonus: fun facts and silly stuff inside!"

Back cover. -Originally published: New York : Blue Sky Press, c2000. -When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and he goes off the deep end because students make fun of his name, only Captain Underpants can save the school from the professor's perilous plot.