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Tom Nancy

The Sheep Who Swapped Brains with a Boy

Illustrated by X. Fang
Hardcover (Paper-over-Board, no jacket)
11"W x 10"H | 20 oz | 12 per carton
On sale Sep 22, 2026 | 48 Pages | 9781774885710
Age 4-8 years

From two of the most acclaimed and beloved picture book makers today, Mac Barnett and X. Fang, comes a hilarious trickster tale like no other. A sneaky sheep has a proposal for an innocent boy that will change both of their lives forever: a brain swap!

Farmer's son Felix knows that Tom Nancy is a clever little sheep. Still, Felix is surprised to learn that not only can this sheep talk, he also has a marvelous machine stowed away in the barn that will allow them to switch brains for the day. Felix agrees to Tom Nancy’s idea of a swap, and it works! Felix finds that life in the pasture as a sheep is interesting. But Tom Nancy discovers that being a boy who wrestles and eats sandwiches is simply stupendous! So when Felix tells him he’s ready to switch back, Tom Nancy has another idea . . . 

A deliciously subversive story that delivers some just deserts, Tom Nancy will have readers of all ages laughing out loud and on the edge of their seats.
MAC BARNETT, the 2025-2026 National Ambassador for Young People's Literature, is a New York Times-bestselling author of stories for children. His work has been translated into more than thirty languages and has sold more than five million copies worldwide. Mac's books have won many prizes, including two Caldecott Honors, three New York Times/New York Public Library Best Illustrated Awards, three E.B. White Read-Aloud Awards, the Boston Globe-Horn Book Award, Germany’s Jugendliteraturpreis, China's Chen Bochui International Children's Literature Award, The Netherlands' Zilveren Griffel, and Italy's Premio Orbil. He is the co-creator, with Jon Klassen, of the Looking at Picture Books Substack, as well as Shape Island, a stop-motion animated series on Apple TV+, based on their bestselling Shapes series of picture books. Mac lives in Oakland, California View titles by Mac Barnett
X. FANG, who also goes by Susan, is a visual artist and maker of books for young readers, including Dim Sum Palace, winner of the 2023 Society of Illustrators' Dilys Evans Founder's Award among other honors, and We Are Definitely Human, the recipient of 5 starred reviews and Broken, an Indie Next Pic. She exhibits her art throughout the U.S. and internationally and has worked professionally as a graphic designer and art director for film and television studios. Born in Taichung, Taiwan, raised in Atlanta, Georgia, she now lives in rural Maine with her husband, son and their dog, Pamela. View titles by X. Fang
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A Literary Hub Most Anticipated Children's Book of 2026

"So good. It’s one of those rare books where the author and the illustrator really seem to be egging each other on in regards to who can be more funny." —K-Fai Steele, author and illustrator of A Normal Pig and All Eyes on Ozzy!

About

From two of the most acclaimed and beloved picture book makers today, Mac Barnett and X. Fang, comes a hilarious trickster tale like no other. A sneaky sheep has a proposal for an innocent boy that will change both of their lives forever: a brain swap!

Farmer's son Felix knows that Tom Nancy is a clever little sheep. Still, Felix is surprised to learn that not only can this sheep talk, he also has a marvelous machine stowed away in the barn that will allow them to switch brains for the day. Felix agrees to Tom Nancy’s idea of a swap, and it works! Felix finds that life in the pasture as a sheep is interesting. But Tom Nancy discovers that being a boy who wrestles and eats sandwiches is simply stupendous! So when Felix tells him he’s ready to switch back, Tom Nancy has another idea . . . 

A deliciously subversive story that delivers some just deserts, Tom Nancy will have readers of all ages laughing out loud and on the edge of their seats.

Creators

MAC BARNETT, the 2025-2026 National Ambassador for Young People's Literature, is a New York Times-bestselling author of stories for children. His work has been translated into more than thirty languages and has sold more than five million copies worldwide. Mac's books have won many prizes, including two Caldecott Honors, three New York Times/New York Public Library Best Illustrated Awards, three E.B. White Read-Aloud Awards, the Boston Globe-Horn Book Award, Germany’s Jugendliteraturpreis, China's Chen Bochui International Children's Literature Award, The Netherlands' Zilveren Griffel, and Italy's Premio Orbil. He is the co-creator, with Jon Klassen, of the Looking at Picture Books Substack, as well as Shape Island, a stop-motion animated series on Apple TV+, based on their bestselling Shapes series of picture books. Mac lives in Oakland, California View titles by Mac Barnett
X. FANG, who also goes by Susan, is a visual artist and maker of books for young readers, including Dim Sum Palace, winner of the 2023 Society of Illustrators' Dilys Evans Founder's Award among other honors, and We Are Definitely Human, the recipient of 5 starred reviews and Broken, an Indie Next Pic. She exhibits her art throughout the U.S. and internationally and has worked professionally as a graphic designer and art director for film and television studios. Born in Taichung, Taiwan, raised in Atlanta, Georgia, she now lives in rural Maine with her husband, son and their dog, Pamela. View titles by X. Fang

Praise

A Literary Hub Most Anticipated Children's Book of 2026

"So good. It’s one of those rare books where the author and the illustrator really seem to be egging each other on in regards to who can be more funny." —K-Fai Steele, author and illustrator of A Normal Pig and All Eyes on Ozzy!
Penguin Random House Comics Retail