Scholastic publishes both series. There are more than six million "Captain Underpants" books in print -- most of them in the grimy hands and under the unmade beds of 6- to 10-year-old boys ...

With more than 80 million copies of "Captain Underpants" books in print worldwide, there's a good chance one or more of the graphic novels are sitting on your kids' bookshelves right now.

Author Dav Pilkey is most well known for the endlessly popular illustrated children’s book series Captain Underpants and its animalian spinoff Dog Man. Following the success of the feature film ...