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 (1) Infantry’.Graham Turner was born in Harrow in 1964, the son of the respected aviation artist Michael Turner with whom he shares an interest in motorsport illustration. A freelance artist since 1984, Graham specialises in historical and military subjects, particularly of the medieval period, and has illustrated several Osprey titles. He lives with his wife and two children in Buckinghamshire.