Book excerpt: The Messerschmitt Bf 109 was the most prominent German fighter type of World War II – over 35,000 were built and it served in many different variants and roles throughout the course of the war. It was the true workhorse of the German Luftwaffe throughout the war and continued in front-line service with some European countries for many years afterwards. This title details the early and pre-war variants, including the Bf 109s that flew in the Spanish Civil War, Poland, France and the Battle of Britain, in a series of increasingly complex construction projects. It also details the numerous kits available of this famous fighter.