M.C. Bishop is an authority on all aspects of Ancient Rome at war, with particular emphasis on arms and armour of the era. He has written, co-written or edited dozens of books and articles on the subject, including volumes on the gladius, pilum and spatha for the Osprey Weapon series and Roman shields and armour for Osprey Elite. Adam Hook studied graphic design, and began his work as an illustrator in 1983. He specializes in detailed historical reconstructions.