Leroy Thompson has trained and advised military and police special-operations units around the world, focusing especially on the tactical use of firearms. He has previously had more than 50 books published, and appeared as a weapons expert on documentaries for Discovery, National Geographic and the BBC. He lives in Missouri, USA. Steve Noon was born in Kent, UK, and attended art college in Cornwall. He's had a life-long passion for illustration, and since 1985 has worked as a professional artist, illustrating over 30 books for Osprey. He lives in South Wales, UK. Born in Malaya in 1949, Alan Gilliland spent 18 years as the graphics editor of the Daily Telegraph, winning 19 awards in that time. He now writes, illustrates and publishes fiction (www.ravensquill.com), as well as illustrating for a variety of publishers (alangillilandillustration.blogspot.com). He lives in Lincolnshire, UK.