Peep through the die-cut holes to the dolphins, clown fish or shark and count how many on each spread.

A board book with holes through its pages that allows its readers to spy letters and paintings of marine animals.

An interactive introduction to farm animals invites youngsters to make animal noises and practice color and letter recognition while peeping through a spy hole on every page and observing clues to guess which animal will be revealed next in the story.

An I-spy book of animals with a peep-hole on every page.

Smooth or furry, shiny or fluffy, there are many pets to spot in this fun take on the 'I Spy' game. Look through the spyhole and use the texture clues to guess, then turn the page to reveal the animal.

An I Spy 8x8 at $3.99 I SPY ANIMALS is based on the bestselling I SPY LITTLE ANIMALS. Toddlers and preschoolers can search photos from the original I Spy series for all kinds of animals. Simple picture clues and rhyming riddles guide the youngest readers through 13 interactive, fun-filled spreads.

Birds' eyes appear through die-cut pages.