By Tom Toro, Author & Illustrator. This laugh-out-loud picture book is a hilarious take on potty training by a talented New Yorker cartoonist -- perfect for fans of If You Give a Mouse a Cookie and How to Babysit a Grandma. Two children bring home a pet porcupine, but they can only keep her if she's house-trained! After a whirlwind of increasingly zany approaches, the kids learn that sometimes the best way to solve a problem is to ask nicely. With Tom's wit and dynamic artwork, this delightful story about learning to pee will bring joy and heart to young readers. For ages 4 and up.