Gregory Fremont-Barnes is senior lecturer in War Studies at Royal Military Academy, Sandhurst, and an authority on nineteenth-century military and naval history.

He was the editor of The Encyclopedia of the French Revolutionary and Napoleonic Wars and the Encyclopedia of the Age of Political Revolutions and New Ideologies 1760-1815, and author of many other titles. He lives in Surrey.

CHRISTA HOOK began her illustrating career in 1986, after studying under her father Richard Hook. Her work has featured extensively in the worlds of publishing and television.

She has established herself as one of Osprey's most popular artists, having illustrated multiple series titles. Her illustrations combine the historian's attention to detail with the artist's sense of drama and atmosphere, and they are sought after by collectors worldwide. Christa lives and works in East Sussex, England.