The Captain Unerpants series, by Dav Pilkey, is a series of American children's books about two 4thgraders, George Beard and Harold Hutchins, and the aptly-named superhero they accidentally create by hypnotizing their principal, Mr. Benny Krupp. The book series had recently won a Disney Adventures Kids Choice Award.The most recent book in the series, Captain Underpants and the Preposterous Plight of the Purple Potty People, was released on August 15, 2006. Ever since the first book was published, Dav received letters from parents of reluctant readers, telling him that their kids who hated reading enjoyed and loved Captain Underpants.