Five books about secret agents featured in series

Jeffrey T. Richelson is the author of several books on intelligence, including Defusing Armageddon: Inside NEST, America's Secret Nuclear Bomb Squad and Spying on the Bomb. He is currently a Senior Fellow with the National Security Archive.In 2008 he named a five best list of books on secret agents featured in series for the Wall Street Journal, including:Berlin Gameby Len DeightonIntelligence