Peek-A-Moo! by Marie Torres Cimarusti

Readers play peek-a-boo with a different animal on each page, guessing what it is, then lifting the flap to find out. Each animal has a different sound that becomes part of the peek-a-boo game: Guess who? "Peek-a-moo!" says the cow. "Peek-a-squeak!" says the mouse. The bold, funny illustrations will keep kids laughing.