Emboldened by the enthusiastic response to Belly Button (Round) --a song from her Grammy-nominated book/CD, Philadelphia Chickens --Sandra Boynton further contemplates this mesmerizing subject. Featuring a beachful of bare-bellied hippos--including one tiny baby who can only say "Bee Bo"--the Belly Button Book is the latest quirky addition to the phenomenally successful Boynton on Board series. Every page captivates with Sandra Boynton's inimitable illustrations and joyful rhyming text: Soon after dark, upon the beach, we sing a hippo song, and if you're feeling in the mood, we hope you'll sing along: "Belly Belly Button, you're oh so fine. Ooo, Belly Button, I'm so happy you're mine." Shiny and sturdy, and featuring a great (navel-shaped, naturally) die-cut cover that offers a provocative glimpse of the merriment inside, the Belly Button Book provides enduring, giggly, read-aloud fun.