Book excerpt: Clear, thorough account, without complicated mathematics, explains the two models of holography—the geometric and the zone plate—and different types of holograms, including transmission, reflection, phase, projection, rainbow, and multiplex. They also show basic setups for making holograms and provide step-by-step instructions so readers can make their own. “I predict that Kasper and Feller will become a standard reference on holography for students and interested laymen”—James A. Van Allen. 116 black-and-white illus.