H. Keith Melton has spent more than 35 years as a historical consultant to the U.S. and international intelligence community. A frequent lecturer at the CIA, FBI, and NSA, he also advises allied intelligence services worldwide. Melton has produced or appeared in over sixty documentaries on espionage and is the owner of the world’s largest private collection of intelligence artifacts—including the infamous ice axe that killed Leon Trotsky. He is a founding board member of the International Spy Museum in Washington, D.C., where he continues to serve as a permanent member of the Board of Directors.
Nigel West is the author of some forty works of non-fiction on security and intelligence-related topics. He has also edited or contributed to a further thirty titles. He was voted "the experts'' expert" by a panel of spy writer assembled by the Observer. He is a specialist, a question-setter BBC TV''s Mastermind. and writes the Daily Telegraph obituaries for the intelligence community. He appears regularly as a commentator on security issues on Sky News, GBTV, CNN and other news outlets. He has also contributed to many podcasts and TV documentaries. He was chairman of the judges for the St Ermin''s Intelligence Book of the Year award and is on the editorial board of the International Journal of Intelligence and Counterintelligence.