Konstantin Nossov is a researcher in and advisor on ancient and medieval arms, armour and warfare, as well as the author of numerous books and articles on the subject. His particular areas of interest include the history of weapons, fortification and siege warfare. He has lived all his life in Moscow, Russia, and has travelled extensively in Europe, North Africa, South Asia, Asia Minor and the Far East. Konstantin has written several Osprey books, as well as other English language titles and numerous books in Russian.