This set presents an impressively broad range of information on more than 300 scientific and historical topics related to the field of aviation. Attention is given to all categories and types of civil and military aircraft, principles of aerodynamics, and mechanical and technical aspects of flying. Besides conventional topics one would associate with a resource devoted to flight and aviation, some unexpected entries, guaranteed to pique the reader, include Animal flight, Baggage handling and regulations, Bermuda Triangle, Paper airplanes, "Vomit Comet, " Whirly-Girls, and Wing-walking. Relevant biographies of pioneers in aviation and profiles of major airlines are incorporated.