Keith Roberts was born in 1955 and was educated at Highgate School. He graduated in History from Leicester University in 1977 and is currently employed by one of the major clearing banks. He is a military analyst and lecturer on the theory and practice of war in Europe and England between 1590 and 1660 and has published widely in this field. His previous work for Osprey includes Elite 25: Soldiers of the English Civil War (I) Infantry'. Graham Turner is a leading artist for Osprey, specialising in the medieval period. Those titles he has already illustrated include Campaign 82: 'Edgehill 1642', Men-at-Arms 310: 'German Medieval Armies 1000-1300', Men-at-Arms 317: 'Henry V and the Conquest of France 1416-53', Men-at-Arms 320: 'Armies of the Caliphates 862-1098' and Warrior 20: 'British Redcoat (2) 1793-1815'.