Terry Crowdy was born in London in 1970. Initially a re-enactor, his interest in the Revolutionary and Napoleonic Wars led to writing for specialist magazines. Having assisted with Campaign 70: 'Marengo 1800', his first Osprey title was Warrior 57: 'French Napoleonic Infantryman 1803-1815'. In addition to preparing new projects for Osprey, he is researching espionage during the Marengo campaign, and a history of the 'Incomparable' 9e Légère.

Patrice Courcelle was born in northern France in 1950 and has been a professional illustrator for some 20 years. Entirely self-taught, he has illustrated many books and magazine articles for Continental publishers, and his work hangs in a number of public and private collections. His dramatic and lucid style has won him plenty of admiration in the field of military illustration. Patrice lives a few miles from the battlefield of Waterloo with his wife and son.
Terry Crowdy has long been fascinated by many aspects of military history and takes great pleasure delving into forgotten historical sources and seeking information that has eluded others. The author of a number of articles and books including The Enemy Within: A History of Espionage, and Military Misdemeanours: Corruption, incompetence, lust and downright stupidity. Terry lives in Kent, UK.