Author Information
Mo Willems's Latest Book

Newest Release

  • Bibliography:
    79 Books (5 Series)
  • First Book:
    April 2003
  • Latest Book:
    June 2024
  • Author Rating:
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Full Series List in Order

Cat the Cat

Cat the Cat, Who Is That? (Feb-2010)
Let's Say Hi to Friends Who Fly! (Feb-2010)
What's Your Sound, Hound the Hound? (May-2010)
Time to Sleep, Sheep the Sheep! (Jul-2010)
Who Flies, Cat the Cat? (Apr-2014)
Who Is That, Cat the Cat? (Apr-2014)
Who Says That, Cat the Cat? (Sep-2014)
Who Sleeps, Cat the Cat? (Sep-2014)

Elephant and Piggie

My Friend Is Sad (Mar-2007)
Today I Will Fly! (Mar-2007)
I Am Invited to a Party! (Aug-2007)
There Is a Bird on Your Head! (Aug-2007)
I Love My New Toy! (Jun-2008)
I Will Surprise My Friend! (Jun-2008)
Watch Me Throw the Ball! (Mar-2009)
Elephants Cannot Dance! (Jun-2009)
Pigs Make Me Sneeze! (Oct-2009)
I Am Going! (Feb-2010)
Can I Play Too? (Jun-2010)
We Are in a Book! (Sep-2010)
I Broke My Trunk! (Feb-2011)
Should I Share My Ice Cream? (Jun-2011)
Happy Pig Day! (Oct-2011)
Listen to My Trumpet! (Feb-2012)
Let's Go for a Drive! (Oct-2012)
I'm a Frog! (Oct-2013)
My New Friend Is So Fun! (Jun-2014)
Waiting Is Not Easy! (Nov-2014)
I Will Take a Nap! (Jun-2015)
I Really Like Slop! (Nov-2015)
The Thank You Book (May-2016)
An Elephant & Piggie Biggie! (May-2017)
The Good for Nothing Button (May-2017)
We Are in an Art-Ivity Book! (Sep-2017)

Knuffle Bunny

1 - Knuffle Bunny: A Cautionary Tale (Sep-2004)
2 - Knuffle Bunny Too: A Case of Mistaken Identity (Sep-2007)
3 - Knuffle Bunny Free: An Unexpected Diversion (Oct-2010)

Pigeon

Don't Let the Pigeon Drive the Bus! (Apr-2003)
The Pigeon Finds a Hot Dog! (May-2004)
The Pigeon Has Feelings Too! (Jun-2005)
The Pigeon Loves Things That Go! (Jun-2005)
Don't Let the Pigeon Stay Up Late! (Apr-2006)
The Pigeon Wants a Puppy! (Apr-2008)
The Pigeon Needs a Bath! (Apr-2014)

Unlimited Squirrels

1 - Who is the Mystery Reader? (Oct-2019)
2 - I Want to Sleep Under the Stars! (Oct-2020)
3 - Guess What!? (Oct-2021)

Book List in Order: 79 titles



  • Handpicked by Amazon kids’ books editor, Seira Wilson, for Prime Book Box â€" a children’s subscription that inspires a love of reading.

    When a bus driver takes a break from his route, a very unlikely volunteer springs up to take his place...



  • Toilet training has never been such an adventure as when it is introduced by popular cartoonist Mo Willems. With his signature humor, the author gently leads children through each step in the process that will finally bring them to their emancipation...



  • When Pigeon finds a delicious hot dog, he can hardly wait to shove the entire thing in his beak. But . . . then a very sly and hungry duckling enters the scene and wants a bite. Who will be the more clever bird?In this hilarious follow-up to the accl...



  • "One of the most delightful read-aloud picture books on the shelf. Knuffle Bunny: A Cautionary Tale is hilarious and the emotions of all involved are captured perfectly in Mo Willems brilliant illustrations. Even after multiple reads this one reta...



  • Handpicked by Amazon kids’ books editor, Seira Wilson, for Prime Book Box â€" a children’s subscription that inspires a love of reading.

    How does it feel to be a Pigeon? Well, the bus driver is trying to get him to act happy, but as we all...



  • In Don't Let the Pigeon Drive the Bus!, the pigeon dreamed of driving the titular bus. In this board book, readers will see him deliriously emoting at the thought of driving a plane, a train, a car, and more, all in his uproariously over-the-top styl...



  • Narrated by a group of friendly mice, an amusing book provides preschoolers with an entertaining introduction to manners through helpful demonstrations of when certain words and phrases, such as "excuse me" and "please," are used in social situations...



  • Leonardo is truly a terrible monster-terrible at being a monster that is. No matter how hard he tries, he can't seem to frighten anyone. Determined to succeed, Leonardo sets himself to training and research. Finally, he finds a nervous little boy, an...



  • It's getting dark, but the pigeon won't go to bed! Will you let him stay up late?...






  • Handpicked by Amazon kids’ books editor, Seira Wilson, for Prime Book Box â€" a children’s subscription that inspires a love of reading.

    Everyone in town loves Edwina, a fun-loving dinosaur who makes scrumptious chocolate cookies, helps ol...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In My Friend is Sad, elephant Gerald is down in the dumps. Piggie is determined to chee...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.Today, I Will Fly! is the funny introduction to the characters. Piggie is determined to...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In I Am Invited to a Party! Piggie is invited to her first party. She doesn't know what...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In There Is a Bird On My Head!, Gerald discovers that there is something worse than a b...



  • Trixie can't wait to bring her one-of-a-kind Knuffle Bunny to school and show him off to everyone. But when she gets there, she sees something awful: Sonja has the same bunny. Suddenly, Knuffle Bunny doesn't seem so one-of-a-kind anymore. Chaos ensue...



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    Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In Are You Ready to Play Outside?, Piggie can't wait to go play in the sunshine. But will a rain...



  • He really, really, REALLY wants one. He'll take really good care of it! What's the matter--don't you want him to be happy?...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In I Love My New Toy!, Piggie can't wait to show Gerald her brand new toy. But will an accidenta...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In I Will Surprise My Friend!, Gerald and Piggie want to play a game and surprise each other-but...






  • Wilbur is different from the other Naked Mole Rats in his Colony, because he wears clothes (and he likes it!). But what will happen when Grandpah, the oldest, wisest, and most naked Naked Mole Rat ever discovers Wilbur's secret Funnyman and th...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends.In Watch Me Throw the Ball!, Gerald is determined to teach Piggie that ball-t...



  • Gerald is careful. Piggie is not.Piggie cannot help smiling. Gerald can.Gerald worries so that Piggie does not have to.Gerald and Piggie are best friends. In Elephants Cannot Dance! Piggie tries to teach Gerald some new moves. But will Geral...



  • Big Frog is big. Quite big. So big this book can't hold her. But with a lot of help from some good friends, Big Frog will fit in just fine! Filled with exciting and unique pops constructed sturdily, and perfectly suited for little hands, this vibrant...



  • Gerald is careful. Piggie is not.
    Piggie cannot help smiling. Gerald can.
    Gerald worries so that Piggie does not have to.

    Gerald and Piggie are best friends.

    In Pigs Make Me Sneeze!, Gerald believes he is allergic to his best frie...



  • Cat the Cat sure likes her friends. You will too! Join this spunky feline as she introduces the very youngest readers to her world, where a surprise is waiting in every book! ...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald and Piggie are best friends. In I Am Going!, Piggie ruins a perfectly good day by telling Gerald she is going. If Piggie goes, who will Gerald skip with, play Ping...



  • Cat the Cat sure likes her flying friends. You will too! Join this spunky feline as she introduces the very youngest readers to her world, where a surprise is waiting in every book. ...



  • Join spunky Cat the Cat as she introduces the very youngest readers to her world, where a surprise is waiting in every book. ...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald and Piggie are best friends. In Can I Play Too? Gerald and Piggie meet a new snake friend who wants to join in a game of catch. But don't you need arms to catch? ...






  • In spring, when City Dog runs free in the country for the first time, he spots Country Frog sitting on a rock, waiting for a friend. “You’ll do,” Frog says, and together they play Country Frog games. In summer, they meet again and play City Dog...



  • Join spunky Cat the Cat as she introduces the very youngest readers to her world, where a surprise is waiting in every book. ...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald and Piggie are best friends....



  • Trixie and her family are off on a fantastic trip to visit her grandparents -- all the way in Holland! But does Knuffle Bunny have different travel plans? An emotional tour de force, Knuffle Bunny Free concludes one of the most beloved picture-boo...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In I Broke My Trunk! Gerald tells Piggie the long, crazy story about breaking his tr...



  • 6½ stories about 2 surprising friends. Having a stuffed alligator for a best friend can be surprising. Sometimes Amanda surprises her alligator with books. Sometimes Alligator surprises Amanda by eating them. But what happens when Amanda br...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In "Should I Share My Ice Cream?" Gerald has a big decision to make. But will he mak...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In Happy Pig Day, Piggie celebrates her favorite day of the year! But will Gerald the...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In Listen to My Trumpet! Piggie can't wait to play her new instrument for Gerald! Bu...



  • The Duckling asks for a cookie -- and gets one! Do you think the Pigeon is happy about that?...






  • Once upon a time, there were three hungry Dinosaurs: Papa Dinosaur, Mama Dinosaur . . . and a Dinosaur who happened to be visiting from Norway. One day -- for no particular reason -- they decided to tidy up their house, make the beds, and prepare...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In Let's Go for a Drive! Gerald and Piggie want to hit the road. But the best-laid p...



  • That Is Not a Good Idea! is a hilarious, interactive picture book from bestselling author and illustrator Mo Willems, the creator of books like Don’t Let the Pigeon Drive the Bus, the Knuffle Bunny series, the Elephant and Piggie series, Goldilocks...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In I'm a Frog! Piggie has some ribbiting news! Can Gerald make the leap required to ...



  • The Pigeon really needs a bath! Except, the Pigeon's not so sure about that. Besides, he took a bath last month! Maybe. It's going to take some serious convincing to try and get the Pigeon to take the plunge....



  • Mo Willems's New York Times bestselling Cat the Cat series is now in board book format -- the perfect baby gift. Kids will love making friends with spunky Cat the Cat as she introduces you to her flying animal pals. This irresistible new series focus...



  • Mo Willems's New York Times bestselling Cat the Cat series is now in board book format -- the perfect baby gift! Kids will love making friends with Cat the Cat as she introduces you to her animal pals. This irresistible new series focuses on simplify...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In "My New Friend Is So Fun!," Piggie has found a new friend! But is Gerald ready to...



  • Mo Willems's New York Times bestselling Cat the Cat series is now in board book format -- the perfect baby gift. Kids will love making friends with spunky Cat the Cat as she introduces them to her animal pals and the sounds they make. This irresis...



  • Mo Willems's New York Times bestselling Cat the Cat series is now in board book format -- the perfect baby gift. Kids will love making friends with spunky Cat the Cat and her animal pals as they get ready for bed. This irresistible new series focu...






  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In "Waiting Is Not Easy!," Piggie has a surprise for Gerald, but he is going to have...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In "I Will Take a Nap!" Gerald is tired and cranky. Will Piggie be in his dreams? Or...



  • Diva, a small yet brave dog, and Flea, a curious streetwise cat, develop an unexpected friendship in this unforgettable tale of discovery. For as long as she could remember, Diva lived at 11 avenue Le Play in Paris, France. For as long as he coul...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In I Really Like Slop , Piggie invites Gerald to try her favorite food ... slop. But G...



  • Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. In The Thank You Book!, Piggie wants to thank EVERYONE. But Gerald is worried Piggie...



  • Today is the day Nanette gets to get the baguette! Is she set? YOU BET! Mo Willems' hilarious new picture book, Nanette's Baguette, follows our plucky heroine on her first big solo trip to the bakery. But . . . will Nanette get the baguette from b...



  • Mo Willems, a #1 New York Times bestselling author and illustrator, celebrates ten years of Elephant & Piggie in this special bind-up collection: Today I Will Fly ; Watch Me Throw the Ball ; Can I Play Too?; the award-winning Let's Go For a Drive ; a...



  • Yellow Bird has a button. It does ... nothing! It is a good for nothing button. Red Bird and Blue Bird are excited to try the button. But when they press it, they discover that the button makes them happy. Happy is something! A flabbergasted Yellow B...



  • Mo Willems' introductory guide for new arrivals welcomes readers to the world using bold, eye-catching graphics and clever text that is perfect for reading aloud. With a fun and heartwarming message, Welcome playfully interacts with the reader with i...



  • A TERRIFICALLY TERRIFYING TALE! Sam is afraid of anything and everything-except for his friend Leonardo, the terrible monster. Kerry is afraid of everything and anything-except for her friend Frankenthaler, the other monster. One day, the tw...



  • Drawing! Coloring! Sculpting! Gaming! Puzzling! LOLing! It's all here in the first-ever Elephant & Piggie ART-ivity book. Created by the same team behind Don't Let the Pigeon Finish This Activity Book!, this fun-filled, hands-on book features an inte...



  • This lyrical beginning-reader by multi award-winning artist Bryan Collier turns the closet on its heel and redefines what it means to be a pair. Beautifully rendered art paired with rich, rhyming dialog creates a powerful reading experience. ...



  • Mo Willems delivers a smorgasbord of hunger, hubris, regret, and redemption as a Busy Creature hilariously chomps and chews its way from A to P and then to Z....



  • Triceratops has an itch ... so does Pterodactyl ... and Brontosaurus ... and T-Rex! But DINOSAURS DO NOT SCRATCH. There is a rule written in stone. What is an itchy dinosaur to do?!...



  • Mo Willems, creator of the revolutionary, award-winning, best-selling Elephant & Piggie series, is back with another breakout beginning-reader series. This time, an ensemble cast of Squirrels, acorns, and pop-in guests host a page-turning extravaganz...



  • Mo Willems, a number one New York Times best-selling author and illustrator, composes a powerful symphony of chance, discovery, persistence, and magic in this moving tale of a young girl's journey to center stage. Illustrator Amber Ren brings Willems...



  • Why does the Pigeon have to go to school? He already knows everything! And what if he doesn't like it? What if the teacher doesn't like him? What if he learns TOO MUCH!?! Ask not for whom the school bell rings; it rings for the Pigeon!...



  • From Mo Willems, creator of the revolutionary, award-winning, best-selling Elephant & Piggie books, comes this breakout beginning-reader series. An ensemble cast of Squirrels, Acorns, and pop-in guests host a page-turning extravaganza. Each book feat...



  • Potty training is an adventure when introduced by celebrated children''s author and illustrator Mo Willems. With Mo''s signature wit and style, readers embark on a hilarious journey from inkling to tinkling. Featuring a crew of supportive sign-wieldi...



  • Mo Willems, creator of the revolutionary, award-winning, best-selling Elephant & Piggie books, has another breakout beginning-reader series. An ensemble cast of Squirrels, Acorns, and pop-in guests hosts a page-turning extravaganza. Each book feature...



  • Doodlers earn their MMD (Master Mo Doodler) diploma in 15 days or less (or more!) with this activity-packed doodle book.Draw impossible buildings, animate favorite characters, design sets, make puppets, give gifts, and create abstract art with Mo Wil...



  • From Mo Willems, creator of the revolutionary, award-winning, best-selling Elephant & Piggie books, comes this breakout beginning-reader series, Unlimited Squirrels.An ensemble cast of Squirrels, Acorns, and pop-in guests hosts a page-turning extrava...



  • Mo Willems, award-winning, best-selling author/illustrator and inaugural Education Artist-in-Residence at the John F. Kennedy Center for the Performing Arts, delivers a masterfully inquisitive look at opposites. Is this dark? Is this light? Is this s...



  • From #1 New York Times best-selling, award-winning author and illustrator Mo Willems!   Buckle up for twists, turns, and emotional loop-de-loops in the most roller coaster-y Pigeon book ever! The Pigeon WILL be ready. Will YOU!?...



  • For the fifth time ever, best friends Elephant and Piggie have five BIGGIE adventures in one book!From award-winning, best-selling author and illustrator Mo Willems, this BIGGIE bind-up of Elephant & Piggie adventures will make readers want to celebr...



  • From Mo Willems, creator of the revolutionary, award-winning, best-selling Elephant & Piggie books, comes this breakout beginning-reader series, Unlimited Squirrels.An ensemble cast of Squirrels, Acorns, and pop-in guests hosts a page-turning extrava...



  • #1 New York Times bestselling author and illustrator Mo Willems shares wit and wisdom from The Pigeon in this one-of-a-kind humor book for adults. Discover important tips, thoughts, opinions, quotes, complaints, and basic philosophical misunderstandi...




  • Mo Willems, #1 New York Times bestselling, award-winning author-illustrator, tackles a BIG concept in this hilarious nonfiction picture book about the relationship between size and scale.     Are YOU big?   A simple question sends read...



  • Mo Willems, #1 New York Times bestselling, award-winning author-illustrator, zooms in on the smallest things in the universe to explore one of life’s most elemental questions in this nonfiction picture book about the relationship betw...


Award-Winning Books by Mo Willems

Are You Ready to Play Outside?
2009 Geisel Medal (Dr. Seuss) -- Children's Literature
City Dog, Country Frog
2010 New England Book Award -- Children's
Don't Let the Pigeon Drive the Bus!
2004 Buckaroo Book Award -- Children's
2005 Flicker Tale Children's Book Award -- Picture Book
2005 Golden Archer Award -- Primary
2005 Kentucky Bluegrass Award -- Grades K-2
2005 Red Clover Award -- Picture Book
2005 South Carolina Childrens, Junior and Young Adult Book Award -- Picture Book
2007 Georgia Children's Book Award -- Picture Storybook
Don't Let the Pigeon Stay Up Late!
2006 NAPPA Gold Award -- Preschool/Kindergarten
Edwina, the Dinosaur Who Didn't Know She Was Extinct
2006 NAPPA Gold Award -- Preschool/Kindergarten
Goldilocks and the Three Dinosaurs
2013 Golden Kite -- Humor
I Broke My Trunk!
2011 Cybils -- Easy Readers
I Love My New Toy!
2008 Cybils -- Easy Readers
2008 Golden Kite -- Picture Bk Illustration
Knuffle Bunny Free: An Unexpected Diversion
2011 Christopher Award -- Books for Young People
Knuffle Bunny Too: A Case of Mistaken Identity
2008 Book Sense Book of the Year Award -- Children's Illustrated
Knuffle Bunny: A Cautionary Tale
2004 Irma S. & James H. Black Award -- Children's Literature
2005 Delaware Diamonds Award -- Grades K-2
2006 Kentucky Bluegrass Award -- Grades K-2
2006 Red Clover Award -- Picture Book
2007 Audies -- Children Ages Up to 8
2007 Parents Choice Award (Fall) (1998-2007) -- Recommended
My Friend Is Sad
2008 Maryland Blue Crab Young Reader Award -- Beginning Fiction
My New Friend Is So Fun!
2015 Maryland Blue Crab Young Reader Award -- Beginning Fiction
The Pigeon Finds a Hot Dog!
2008 Golden Archer Award -- Primary
The Pigeon Needs a Bath!
2014 Goodreads Choice Award -- Picture Books
The Thank You Book
2016 Goodreads Choice Award -- Picture Books
That Is Not a Good Idea!
2013 Irma S. & James H. Black Award -- Children's Literature
2014 South Carolina Childrens, Junior and Young Adult Book Award -- Picture Book
There Is a Bird on Your Head!
2008 Geisel Medal (Dr. Seuss) -- Children's Literature
2010 Charlotte Award -- Primary
Time to Pee!
2003 NAPPA Gold Award -- Babies & Toddlers
Today I Will Fly!
2010 Garden State Children's Book Award -- Easy-To-Read
Watch Me Throw the Ball!
2009 Cybils -- Easy Readers
We Are in a Book!
2010 Cybils -- Easy Readers
2011 Gryphon Award -- Children's Literature
2011 Maryland Blue Crab Young Reader Award -- Beginning Fiction
2012 Buckeye Children's Book Award -- Grades K-2
2012 Virginia Readers Choice Award -- Primary
2013 California Young Reader Medal -- Primary


Frequently Asked Questions (FAQ)

Mo Willems has published 79 books.

The next book by Mo Willems, Are You Small?, will be published in June 2024.

The first book by Mo Willems, Don't Let the Pigeon Drive the Bus!, was published in April 2003.

Yes. Mo Willems has 5 series.