Mo Willems is a number one New York Times bestselling author and illustrator. He has been awarded three Caldecott Honors and an Eisner Award for his picture books, and two Theodor Seuss Geisel Medals and five Geisel Honors for his celebrated ELEPHANT & PIGGIE early readers. His debut picture book, Don't Let the Pigeon Drive the Bus! was inducted into the Picture Book Hall of Fame. Mo began his career as a writer and animator on Sesame Street, where he garnered six Emmy Awards. Mo is the cofounder of Hidden Pigeon Company, established in 2023 to extend the reach of Mo Willems characters and stories across multiple platforms.
Mo Willems Books

Con-grad-ulations, Pigeon!
Con-grad-ulations, Pigeon! He did it — or did he? Join our favorite winged friend in this hilarious journey where The Pigeon scrambles to get his degree — or get totally schooled. The B&N Exclusive Edition includes a graduation-themed picture frame.
A Hare-larious Tale About Bunnies
Shop NowMore Mo! The acclaimed author is back with a hare-raisingly funny bunny book with ear-resistible fluffy friends on every page. Our Exclusive Edition includes a sheet of bunny stickers.
The Pigeon Series
See AllThe Pigeon Is on the Toniebox!
Shop NowThe Pigeon is at it again in this delightful new tonie featuring award-winning stories by Mo Willems.
Elephant & Piggie
See AllMeet Mo Willems’ Elephant Gerald and Piggie, winners of two Theodor Seuss Geisel Medals and recipients of five Geisel Honors! Gerald is careful. Piggie is not. Gerald worries so that Piggie does not have to. Elephant Gerald and Piggie are best friends.
Meet Mo Willems’ Elephant Gerald and Piggie, winners of two Theodor Seuss Geisel Medals and recipients of five Geisel Honors! Gerald is careful. Piggie is not. Gerald worries so that Piggie does not have to. Elephant Gerald and Piggie are best friends.
Mo Willems and Dan Santat
Shop NowAward winners Mo Willems and Dan Santat join hands in this innovative picture book about lefties (and righties)! The Barnes & Noble Exclusive Edition includes pop-out hand puppet props.
Bestsellers
Explore the Smallest and Biggest Things in the Universe
Are You Small? and Are You Big?
After challenging perspective in Are You Big?, Mo Willems is back to reshape perspective yet again with Are You Small? This exploration of size, from a human down to the microscopic world, is a great way to get young minds thinking big picture.
After challenging perspective in Are You Big?, Mo Willems is back to reshape perspective yet again with Are You Small? This exploration of size, from a human down to the microscopic world, is a great way to get young minds thinking big picture.
Knuffle Bunny: A Cautionary Tale
See AllUnlimited Squirrels
See AllAn ensemble cast of Squirrels, Acorns, and pop-in guests hosts a page-turning extravaganza! Each book features a funny, furry adventure, bonus jokes, quirky quizzes, nutty facts, and so, so many Squirrels.
An ensemble cast of Squirrels, Acorns, and pop-in guests hosts a page-turning extravaganza! Each book features a funny, furry adventure, bonus jokes, quirky quizzes, nutty facts, and so, so many Squirrels.