Big Boy Underpants offers a light, positive approach to motivate little boys to become toilet-trained. Snappy, rhyming text and bright, quirky illustrations sound the perfect note to encourage toddlers who want to wear big boy underpants--just like Daddy Sturdy board pages will hold up to repeated readings, as little boys get ready to say, Bye-bye, diapers This is the perfect companion to Big Girl Panties.