Edited and compiled by Grant T. Hammond, “A Discourse on Winning and Losing” is the first book published on John R. Boyd’s famous same-titled briefing. A maverick fighter pilot devoted to the Air Force and its mission, Boyd challenged orthodoxy, including fighter tactics and the theory of how wars were to be fought. Inspiring radically different opinions, he had the courage to state his views—and defend them regardless of consequence. (Courtesy Photo, Air University Press)