Darren Fa was born in Gibraltar 1966. Darren is a member of the Fortress Study Group, The Ordnance Society and the Coast Defence Study Group. Deputy Director of the Gibraltar museum, he has also prepared numerous papers, articles and talks on Gibraltar's local and natural history, and is co-editor of Gibraltar Heritage, a bi-annual magazine. Clive Finlayson was born in Gibraltar in 1955. He completed a BSc at the University of Liverpool, UK, and went on to obtain a Dphil from the University of Oxford. A former Managing Director of the Gibraltar Tourism Agency, in 1991 Clive became the Director of the Gibraltar Museum.

Adam Hook specializes in detailed historical reconstructions, and has illustrated Osprey titles on the Aztecs, the Greeks, the American Civil War and the American Revolution. His work features in exhibitions and publications throughout the world. He lives in Sussex, UK.
Prof. Clive Finlayson is Director of the Gibraltar Museum. He is an evolutionary ecologist with a DPhil from Oxford. He is a leading exponent of the relationship between climate change and species distributions, and is the author of several books including Neanderthals and Modern Humans (CUP), and Birds of the Straits of Gibraltar (Poyser).
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.