Raffaele D'Amato is an experienced Osprey author having written more than 20 titles. He is the author of 40 books on the military history of the Roman Empire, Middle Ages, and Byzantium, as well as numerous articles.

Having obtained his doctorate in Byzantino-Roman Law and Roman Archaeology, he taught for two years at the Fatih University of Istanbul as visiting Professor and is now working as a lawyer and as external researcher for the Laboratory of the Danubian Provinces of the University of Ferrara.

Raffaele Ruggeri was born in Bologna where he works and lives with his wife. After studying at the Fine Arts Academy he worked in several areas of graphics and design before deciding to devote himself to illustration. He has long been interested in military history and has illustrated a number of books for Osprey, specializing in African subjects.