Test your skills of observation with this clever puzzle book! Forty artistic masterpieces—including paintings by Dante Gabriel Rossetti, Gustav Klimt, Édouard Manet, and Diego Velázquez— are reproduced in duplicate on each spread. But what appear to be two identical images actually have subtle differences…and it's up to you to spot them! A slice of fruit missing from a still life, a sheet of music gone blank, a color change in a bird's tail feathers…Some pages are easier than others and some are downright challenging, but the answers are in the back of the book for when you're feeling really flummoxed. What fun!