Publisher's Synopsis
Look closely at each illustration what do you see? Are you sure? Don t trust your eyes too quickly, because every picture here has an optical trick to fool you. Some-times you ll find two objects in one ; sometimes you have to rotate drawings to solve the puzzle. Among the forms of visual a bird that flies into a cage and a boy who changes into a monkey when the page is turned upside down. More than 300 engrossing optical illusions.