Dr Raffaele D'Amato is an experienced Turin-based researcher of the ancient and medieval military worlds. After achieving his first PhD in Romano-Byzantine Law, and having collaborated with the University of Athens, he gained a second doctorate in Roman military archaeology. He currently works as vice-head of the Laboratory of the Danubian Provinces at the University of Ferrara, under Professor Livio Zerbini. 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.