Berkshire-based Harry Dempsey is a talented profile artist who specialises in fighter aircraft of World War I. He has illustrated all of Osprey's World War I Aircraft of the Aces titles to date. Norman Franks is one of the world's leading authorities on World War I fighter aviation, having published some of the seminal works on the subject. He is currently working on a long list of volumes on Great War aces for Osprey's Aircraft of the Aces series.