Christopher Gravett is Senior Curator at the Royal Armouries and a recognised authority on the arms, armour and warfare of the medieval world. He has worked as an advisor for numerous TV and Film productions. His previous Osprey titles include Elite 17: 'Knights at Tournament', Warrior 1: 'Norman Knight 950-1204 AD' and Campaign 13: 'Hastings 1066'.
Adam Hook studied graphic design, and began his work as an illustrator in 1983. He specialises in detailed historical reconstructions, and has illustrated Osprey titles on the Aztecs, the Greeks, the American Civil War and the American Revolution. His work features in exhibitions and publications throughout the world.