George and Harold's latest prank backfires in the second book in this #1 New York Times bestselling series by Dav Pilkey, the author and illustrator of Dog Man!

George and Harold are usually responsible kids — whenever anything bad happens, George and Harold are usually responsible! This time, they accidentally invent an army of terrifying talking toilets. Luckily, they know a superhero with enough snap in his waistband...

Harold and George's time-traveling Purple Potty lands them in an alternate universe where everything seems delightful, but evil lurks just beneath the surface, and leads to a battle between Captain Underpants and his own evil twin.

Professor Pippy P. Poopypants takes over science class at Jerome Horwitz Elementary in the fourth book in this #1 New York Times bestselling series by Dav Pilkey, the author and illustrator of Dog Man!

George and Harold are fourth-grade buddies with a penchant for practical jokes. When the boys' latest prank drives their science teacher over the edge, their clueless principal, Mr. Krupp, quickly hires a replacement: Professor Pippy P....

George and Harold's nemesis Melvin Sneedly goes from snooty to snotty in the sixth book in this #1 New York Times bestselling series by Dav Pilkey, the author and illustrator of Dog Man!

George and Harold are up to their old tricks again, and when their latest prank makes a direct hit on school brainiac Melvin, he decides to get even! But in the blink of an eye — and the sneeze of a nose — the Bionic Booger Boy is born! Can...

"When a new bunch of baddies bust up the town, Dog Man is called into action -- and this time he isn't alone. With a cute kitten and a remarkable robot by his side, our heroes must save the day by joining forces with an unlikely ally: Petey, the World's Most Evil Cat. But can the villainous Petey avoid vengeance and venture into virtue?"--Provided by publisher

George and Harold have created the greatest super-hero in the history of their school and now they're about to bring him to life. Meet Captain Underpants! His true identity is so secret, even he doesn't know who he is.

Evil Uncle Unicorn attempts to dominate Earth by using a Ladybot to trick Mighty Robot. Ricky Ricotta loves his Mighty Robot, but sometimes it's hard for a little mouse to have a best friend who's so BIG. One night, Ricky makes a wish: If only his Mighty Robot had another friend who was his own size so he wouldn't have to hang out with Ricky all the time. Little does Ricky know, his wish is about to come true. Evil Uncle Unicorn has traveled all the...

A monstrous mutt terrorizes the residents of Mousopolis.

A small mouse named Ricky Ricotta and his best friend, a giant flying robot, save the world from Victor Von Vulture and his vicious Voodoo Vultures from Venus.

By flipping the pages, the reader may view animated illustrations that follow Ricky Ricotta, a small mouse, his giant flying robot, and his annoying cousin Lucy, as they battle the nightcrawlers from Neptune that are invading through a wormhole.