Istv.n Toperczer is a flight surgeon with the Hungarian Air Force. In his spare time, he has become one of the few individuals from outside Vietnam to be given open access to the files of the Vietnamese People's Air Force. He has made several visits to Hanoi, and other Vietnamese cities, in the past five years, and has interviewed many of the leading aces from the war years. Mark Styling has illustrated several books in both the Aces and Combat Aircraft series. Since switching mediums from airbrush to Mac art he has produced some of the best profiles Osprey has ever used. Iain Wyllie is one of Britain's leading cover artists. Since becoming a full-time aviation artist he has created over 40 cover artworks for Osprey's hugely successful Aircraft of the Aces and Combat Aircraft series.