Tom Nancy: The Sheep Who Swapped Brains with a Boy, written by Mac Barnett and illustrated by X. Fang. tundra, Penguin Random House. 2026. $26.99 ages 4 and up

 

"The next morning Tom Nancy went 
back to school. Felix tried to go too. 

"Look at that!' The children pointed 
and giggled. "A sheep followed you 
to school! Just like in a storybook."

Felix tried to tell them he was actually 
a boy, but nobody listened to a sheep."

Kevin lives on a farm with his parents and an assortment of animals that include an arrogant sheep named Tom Nancy. Because Felix looks ready to have a conversation, Tom Nancy speaks to him one day. He has an important question. 

"Do you want to see a marvelous thing?" 

Felix, being Felix, says yes. With Tom Nancy in the lead the two are off to the old barn, where Tom Nancy shows Felix a brain-swapping machine he has built. He explains its workings and suggests they try swapping brains for the day. It's easy to see Felix's vulnerability, and Tom is quick to take advantage. 

BING! 

Tom becomes everything Felix, and Felix is suddenly a wide-eyed innocent sheep. Tom Nancy loves his day as a boy! Everything about it makes him happy. Felix does what sheep do; he spends his day in the pasture chewing grass, which he finds 'interesting.' When Felix is ready to switch back, he is distraught to learn Tom Nancy has no intention of doing so. Tom Nancy takes advantage of every opportunity to keep his new identity, while Felix tries to explain to the other animals what has happened. The other animals are perfectly content with Felix as he now is. They like him that way, and have no warm feelings for Tom Nancy. 

Tom was happy until he has to deal with the realities of school, and the expectations of him concerning homework. He complains to his dad who isn't open to letting him stay home since he hasn't been helping with the chores. With warnings from both principal and father concerning the work he will be expected to do in the future, Tom runs to Felix with a request to switch back. When they get to the barn, Tom Clancy is met with a very big surprise; a comeuppance from Felix and the other animals concerning his future. 

X. Fang drew her eye-catching illustrations with graphite and then added color in Photoshop. She keeps characters center of attention against all backgrounds. Tom Nancy is quite the individual; everything about him is big and outrageous. This is one terrific picture book from the very funny and irreverent Mac Barnett.