Hecht, a science and technology writer who has covered the laser industry for 30 years, offers an introduction to lasers and associated equipment for nontechnicians with only a minimal background in algebra. The book begins with an overview how lasers work, what they do, and how they're used, then goes on to explore topics such as optics and laser accessories, gas lasers, solid-state and fiber lasers, semiconductor diode lasers, and high- and low-power laser applications. Learning features include b&w drawings and diagrams, chapter key points, multiple choice quizzes, a glossary, and an appendix of formulas and conversions. The audience for the book includes advanced high school students, undergraduate physics and engineering students, and professionals who work with lasers but lack formal training. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)