Mortal enemies in the skies over wartime Europe, Britain's Spitfire and Germany's Bf 109 were the definitive fighters of their day. In extraordinary detail, this book profiles both aircraft from their earliest development to their service histories and the air battles they fought. Packed with information -- including full specifications -- the variants, weapon systems, missions and unit operators of both types are fully examined. This important work of reference features an authoritative text and is superbly illustrated throughout with a wealth of superb period photos, colour artwork and detailed cutaways. Book jacket.