Dr. Nigel Thomas is an accomplished linguist and military historian, formerly a Principal Lecturer at Northumbria University, now a freelance military author, translator, and military uniform consultant.

His interests are 20th century military and civil uniformed organizations, with a special interest in Germany, Central, and Eastern Europe. He was awarded a Ph.D. on the Eastern enlargement of NATO. He is based in the UK.

Adam Hook studied graphic design, and began his work as an illustrator in 1983. He specializes in detailed historical reconstructions, and has illustrated Osprey titles on subjects as diverse as the Aztecs, the Ancient Greeks, Roman battle tactics, several 19th-century American subjects, the modern Chinese Army, and a number of books in the Fortress series.

His work features in exhibitions and publications throughout the world. He lives in East Sussex, UK.