Like other works from Salem Press, this three-volume reference is targeted (high school and undergraduate college students), well-planned, and produced with substantial attention given to its practical use and the accessibility of the contents. Alphabetically arranged essays ranging in length from 400 to 2,000 words are written with a logical, unifying structure, each with cross references and suggested further reading. The scope, of course, encompasses a wide range of material including sciences involving air, earth, water, vegetation, etc.; social and political issues; organizations, people, laws; and areas of controversy. In the third volume an extensive section that lists and describes popular culture media related to the subject will be a useful reference for teachers. Also included are a glossary, a general bibliography, and a listing of web sites, followed by a detailed subject index. Subscription to an online component is included with purchase until the end of 2011. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)