Scholastic

George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house playing video games -- then they switch! But when gym teacher Mr. Meaner uses mind-control to create obedient, perfect robot children, the future of humanity is in their hands!

Dr Dilbert Dinkle started his career as an ordinary, everyday evil genius/inventor/bank robber. But when he awakens one day transformed into a walking, talking puddle of pee, he vows to destroy every toilet in town. Could this be a job for the death-defying, dynamic duo of Super Diaper Baby and Diaper Dog?

In their ninth epic adventure, George and Harold encounter a familiar face - Professor Poopypants! He now goes by the name Tippy Tinkletrousers and is determined to seek revenge for all of the teasing his old name inspired. Now it's up to George, Harold, and the amazing Captain Underpants to stop Tippy Tinkletrousers before it's too late!

Yikes! George and Harold have been turned into evil zombie nerds, robotic pants are running riot - and the Captain no longer exists to save the day!

Captain Underpants returns to face his nemesis - the evil Capain Blunderpants - with the help of two new superheroes, Great-Granny Girdle and Boxer Boy. George and Harold are in BIG trouble this time! More laffs, evil, horror and high adventure in the name of all that is pre-shrunk and cottony. Complete with amazing Flip-o-Rama animation!

Not so long ago, George and Harold created the greatest superhero in the history of their school - and brought him to life by mistake! But that was only the start... Now the boys have accidentally created a whole army of evil, vicious talking toilets intent on taking over the world!!! Someone needs to flush them out!

Professor Pippy P. (Pee-Pee) Poopypants is a brilliant scientist, but his ridiculous name means no one takes his fantastic inventions seriously. And now he's on the rampage! He's armed with fiendish inventions Shrinky-Pig 2000 and the terrible Gerbil Jogger 2000. Can Captain Underpants stop him?

George and Harold have created the greatest superhero 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! FIGHTING FOR TRUTH, JUSTICE AND ALL THINGS PRE-SHRUNK AND COTTONY!

George and Harold are back in another icky adventure! When class boffin Melvin Sneedly goes too far with his latest amazing invention, the Bionic Booger Boy comes to sticky, snotty, bad-tempered life...

When darkness falls upon the city, only one heroic duo has the pedigree to deliver justice! Dog Man, the newest hero from the creator of Captain Underpants, is back and this time he's not alone. The heroic hound with a nose for justice now has a sidekick in the form of a super-cute kitten, and together they have a mysterious caper to sniff out!

There's a new bunch of baddies in town, and they have something sinister in store for Petey the Cat. Once again, Dog Man is called into action! With a cute kitten and a remarkable robot by his side, the Supa Buddies must join forces with the most unlikely of heroes to save the day.

Lonely Dragon has made a friend, and he loves spending time with his new buddy! In this warmhearted friendship story of love and loss, Dav Pilkey has created a lovable hero that everyone will cheer for!