Gr 9 Up Although this book introduces some interesting facts about shark biology and presents the latest advice for avoiding shark attacks, it is poorly organized and contains so many underdefined biological terms that it will attract only those with a good background in biology. The introduction to shark anatomy lacks sufficient illustrations to hold most readers' interest. Passive sentences are used extensively, further weakening the style. The most useful part of the book is the description of various species, each accompanied by a black-and-white drawing. These descriptions have more detail than the standard spotting guides like Eschmeyer and Herald's A Field Guide to the Pacific Coast Fishes of North America (Houghton, 1983) provide. However, the many other shark books available will give beginners a better start.Jonathan R. Betz-Zall, Sno-Isle Regional Library, Lynnwood, Wash.