David Nicolle is a leading expert on the history of medieval warfare, in particular the Crusades and Middle Eastern warfare, and he is a prolific writer of books on these subjects as well as articles and magazine articles. Among his many previous works are The Hundred Years War; The Mongol Warlords;Saladin and the Saracens; The Crusades; The Medieval Warfare Sourcebook; Hattin 1187 and, most recently, Fighting for the Faith (Pen & Sword, 2007).

Graham Turner is a leading historical artist, specializing in the medieval period. He has illustrated numerous titles for Osprey, covering a wide variety of subjects from the dress of the 10th-century armies of the Caliphates, through the action of bloody medieval battles, to the daily life of the British Redcoat of the late 18th century. The son of the illustrator Michael Turner, Graham lives and works in Buckinghamshire, UK.