Eye-Popping Optical Illusions

In the follow-up to Optical Illusion Magic, Michael DiSpezio presents more mind-boggling tricks in Eye-Popping Optical Illusions. The author simply explains the science of illusion throughout and offers directions on how to make different optical devices (e.g., ""Fantascope,"" which creates the illusion of motion, and ""Anaglyphs,"" which create 3-D illusions), with artwork that can be photocopied to get industrious kids going. ( May)