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Ricky Ricotta's Mighty Robot (Ricky Ricotta's Mighty Robot #1)

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2)

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta's Mighty Robot #4)

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Video Vultures from Venus (Ricky Ricotta's Mighty Robot #3)

by Dav Pilkey, Dan Santat (Illustrator)

Stupid Stinkbugs from Saturn

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Unpleasant Penguins from Pluto

by Dav Pilkey, Dan Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune

by Dav Pilkey, Dan Santat (Illustrator)

Uranium Unicorns from Uranus.

by Dav Pilkey, Dan Santat (Illustrator)

Make Way for Dumb Bunnies

by Sue Denim, Dav Pilkey

The Adventures of Super Diaper Baby

by George Beard (Illustrator), Harold Hutchins, Dav Pilkey

The Dumb Bunnies' Easter

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Guys Read: Terrifying Tales

by Jon Scieszka, Gris Grimly (Illustrator), Adam Gidwitz, R. L. Stine, Dav Pilkey, Michael Buckley, Claire Legrand, Nikki Loftin, Adele Griffin, Kelly Barnhill, Lisa Brown, Daniel Jose Older, Rita Williams-Garcia

Big Dog and Little Dog Tales of Adventure

by Dav Pilkey

Big Dog and Little Dog Getting in Trouble Board Book

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The Captain Underpants Collection

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Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy

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Dogzilla

by Dav Pilkey, BookSource Staff (Compiled by)

Big Dog and Little Dog Making a Mistake

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The All New Captain Underpants Extra-Crunchy Book O' Fun 2

by Dav Pilkey

Dogzilla

by Dav Pilkey

Kat Kong

by Dav Pilkey, BookSource Staff (Compiled by)

Big Dog and Little Dog Going for a Walk Board Book

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta's Mighty Robot #4) (Library Edition)

by Dav Pilkey, Dan. Santat (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2) (Library Edition)

by Dav Pilkey, Dan. Santat (Illustrator)

Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies from Outer Space

by Dav Pilkey

Big Dog and Little Dog Going for a Walk/Perrazo y Perrito Van a Pasear

by Dav Pilkey

Dogzilla

by Dav Pilkey

Big Dog and Little Dog Making a Mistake/Perrazo y Perrito Se Equivocan

by Dav Pilkey

Guys Read: Terrifying Tales

by Jon Scieszka, Gris Grimly (Illustrator), Adam Gidwitz, R. L. Stine, Dav Pilkey, Michael Buckley, Claire Legrand, Nikki Loftin, Adele Griffin, Kelly Barnhill, Lisa Brown, Daniel Jose Older, Rita Williams-Garcia

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune

by Dav Pilkey

The Captain Underpants Extra-Crunchy Book O' Fun

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus (Ricky Ricotta's Mighty Robot #7) (Library Edition)

by Dav Pilkey, Dan Santat (Illustrator)

Captain Underpants

by Dav Pilkey

Ricky Ricotta's Giant Robot

by Dav Pilkey, Martin Ontiveros (Illustrator)

Mighty Robot vs. the Voodoo Vultures from Venus

by Dav Pilkey, Martin Ontiveros (Illustrator)

Hombre Perro (Dog Man)

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus

by Dav Pilkey, Martin Ontiveros (Illustrator)

Ricky Ricotta's Mighty Robot vs. the Voodoo Vultures from Venus

by Dav Pilkey

Kat Kong

by Dav Pilkey

Big Dog and Little Dog Getting in Trouble (Reader)

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8) (Library Edition)

by Dav Pilkey, Dan. Santat (Illustrator)

Lord of the Fleas

by Dav Pilkey

El Capitan Calzoncillos y el Diabolico Desquite Del Inodoro-Turbotron 2000 (Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000)

by Dav Pilkey

Big Dog and Little Dog Wearing Sweaters (Reader)

by Dav Pilkey

Brawl of the Wild

by Dav Pilkey

Dog Man and Cat Kid

by Dav Pilkey

Big Dog and Little Dog/Perrazo y Perrito

by Dav Pilkey

Dragon Gets By

by Dav Pilkey

Dogzilla

by Dav Pilkey

The Hallo-Wiener

by Dav Pilkey, BookSource Staff (Compiled by)

Dragon's Fat Cat

by Dav Pilkey

Big, Bad Battle of the Bionic Booger Boy

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Unpleasant Penguins from Pluto

by Dav Pilkey

The Adventures of Captain Underpants

by Dav Pilkey, BookSource Staff (Compiled by)

Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury

by Dav Pilkey, BookSource Staff (Compiled by)

Kat Kong

by Dav Pilkey

Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy

by Dav Pilkey

Perrazo y Perrito Van a Pasear/Big Dog and Little Dog Going for a Walk (reader)

by Dav Pilkey

Dragon's Fat Cat

by Dav Pilkey, BookSource Staff (Compiled by)

A Friend for Dragon

by Dav Pilkey, BookSource Staff (Compiled by)

Dragon's Fat Cat

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. The Jurassic Jackrabbits from Jupiter

by Dav Pilkey, Dan Santat (Illustrator)

Captain Underpants and the Preposterous Plight of the Purple Potty People

by Dav Pilkey

Captain Underpants and the Attack of the Talking Toilets

by Dav Pilkey, Jose Garibaldi (Illustrator)

Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 2

by Dav Pilkey

Captain Underpants and the Attack of the Talking Toilets

by Dav Pilkey

Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers

by Dav Pilkey, BookSource Staff (Compiled by)

A Friend for Dragon

by Dav Pilkey

Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000

by Dav Pilkey

The Adventures of Captain Underpants

by Dav Pilkey, BookSource Staff (Compiled by)

Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000

by Dav Pilkey

Ricky Ricotta V the Uranium Unicorns from Uranus

by Dav Pilkey, Martin Ontiveros (Illustrator)

Captain Underpants Double Crunchy Book o'Fun (Full Colour) PB

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs the Mutant Mosquitoes from Mercury

by Dav Pilkey, Dan Santat (Illustrator)

Collaborations

by Dav Pilkey

Dragon's Merry Christmas

by Dav Pilkey

Dogzilla

by Dav Pilkey, BookSource Staff (Compiled by)

A Friend for Dragon

by Dav Pilkey

A Friend for Dragon

by Dav Pilkey

Dragon Gets By

by Dav Pilkey

Giant Robot vs. the Mutant Mosquitoes from Mercury

by Dav Pilkey, Martin Ontiveros (Illustrator)

The Adventures of Captain Underpants

by Dav Pilkey

Dragon's Halloween

by Dav Pilkey

Captain Underpants and the Attack of the Talking Toilets

by Dav Pilkey

Captain Underpants and the Attack of the Talking Toilets

by Dav Pilkey, BookSource Staff (Compiled by)

Mighty Robot vs the Voodoo Vultures from Venus

by Dav Pilkey, Adrienne Geoghegan (Illustrator), Martin Ontiveros (Illustrator)

Dragon's Halloween

by Dav Pilkey

Dog Man Unleashed

by Dav Pilkey

Dragon's Halloween

by Dav Pilkey

Captain Underpants and the Perilous Plot of Professor Poopypants

by Dav Pilkey

Captain Underpants and the Attack of the Talking Toilets

by Dav Pilkey

The Attack of the Talking Toilets

by Dav Pilkey

The Dumb Bunnies' Easter

by Dav Pilkey

Giant Robot vs. the Mutant Mosquitoes from Mercury

by Dav Pilkey, Martin Ontiveros (Illustrator)

Dragon's Halloween

by Dav Pilkey

The Jurassic Jack Rabbits from Jupiter

by Dav Pilkey, Martin Ontiveros (Illustrator)

Captain Underpants and the Perilous Plot of Professor Poopypants

by Dav Pilkey

The Stupid Stickbugs from Saturn

by Dav Pilkey, Martin Ontiveros (Illustrator)

Captain Underpants and the Perilous Plot of Professor Poopypants

by Dav Pilkey

Perrazo y Perrito Se Meten en Problemas / Big Dog and Little Dog Getting in Trouble

by Dav Pilkey

The Captain Underpants Super-Silly Sticker Studio

by Editors of Klutz, Dav Pilkey

Mighty Robot vs the Mutant Mosquitoes from Mercury

by Dav Pilkey, Martin Ontiveros (Illustrator)

Captain Underpants: Three Pant-Tastic Novels in One (Books 1-3)

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs the Voodoo Vultures from Venus

by Dav Pilkey, Dan. Santat (Illustrator)

Captain Underpants: Three More Wedgie-Powered Adventures in One (Books 4-6)

by Dav Pilkey

Captain Underpants and the Tyrannical Retaliation of the Turbo Toilet 2000

by Dav Pilkey

The Epic Tales of Captain Underpants: Wedgie Power Guidebook (Official TV Handbook)

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the un-Pleasant Penguins from Pluto

by Dav Pilkey, Dan. Santat (Illustrator)

Captain Underpants: Three Outstandingly Outrageous Outings in One (Books 7-9)

by Dav Pilkey

The Invasion of the Potty Snatchers

by Dav Pilkey

Ricky Ricotta's Mighty Robot

by Dav Pilkey, Dan. Santat (Illustrator)

Captain Underpants and the Revolting Revenge of the Radioactive Robo-Boxers

by Dav Pilkey

Captain Underpants and the Preposterous Plight of the Purple Potty People

by Dav Pilkey

Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus

by Dav Pilkey, Dan. Santat (Illustrator)

The Adventures of Captain Underpants

by Dav Pilkey

Captain Underpants and the Terrifying Return of Tippy Tinkletrousers

by Dav Pilkey

Captain Underpants and the Sensational Saga of Sir Stinks-a-Lot

by Dav Pilkey

Mighty Robot vs the Jurassic Jack Rabbits from Jupiter

by Dav Pilkey, Dan. Santat (Illustrator)