The book "Boulton Paul Defiant" offers a comprehensive analysis of the British fighter aircraft and bomber interceptor that was deployed at the beginning of World War II. Developed by Boulton Paul Aircraft, the Defiant was designed as a "turret fighter" and served the Royal Air Force. Despite its innovative design, reminiscent of the Bristol Fighter from World War I, the Defiant proved vulnerable to the more agile, single-engine Messerschmitt Bf 109. A notable feature was the absence of forward-firing weapons, which limited its operational capabilities. Nevertheless, the Defiant later found use in night fighting, target towing, electronic warfare, and air-sea rescue. The book highlights the various roles and development of the aircraft, as well as the experiences of the pilots who nicknamed it "Daffy." It is a valuable resource for aviation enthusiasts and historians interested in air warfare during World War II.