Another variation on the theme, the sound in this one are all easy enough to make, and the flaps and happy creatures are a winner with my toddler. Liam has also started picking out the facial features of the different animals, eyes, noses, mouths. I think he's trying to figure out where his horn it - he finds the rhino fascinating. ( )

Little ones love to play peek-a-boo. With its oversize flaps and bright, bold illustrations, this follow-up to the highly successful Peek-a-Moo! is sure to be another hit with young readers. On every page, kids play peek-a-boo with a different animal found at the zoo, 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-roar!" says the lion. "Peek-a-ooo-ooo-ooo!" says the chimpanzee. The sweet, funny animals will keep kids laughing, while the large trim size and sturdy binding will ensure many hours of lift-the-flap fun!