This volume chronicles the history of the Pratt & Whitney aviation company, beginning with its founding in 1925 by Frederick Rentschler. It describes the development of its jet engines for civilian and military purposes, how it was affected by the Depression, its success during World War II, space technology, and more recent engine types. A chart of engine types and uses, as well as many photos, is provided. Sullivan, who formerly worked in media relations at the company, is now a public relations consultant. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)