Become a picture puzzle sleuth! Every page of this latest addition to theSpot the Differencesseries is jam-packed with dozens of surprising discoveries and perceptual challenges. The goal is simple: look at two photographs that seem identical, and find all the small variations between them. Each photo pair shows an interesting collection of some kind: chess pieces, hunting trophies, jewelry...even bats in a cave and rocks in a riverbed. With the book divided into three levels of challenge-Keen, Sharp, and Masterful-there's something for every puzzler and to keep the entire family engaged. But no peeking at the answers in the back!