Presents information about men and women spies throughout history as well as about the tools and equipment they used in espionage and intelligence service.

Includes index.

What is a spy? -- Types of spy -- Secret tool kit -- Seeing the invisible -- Bugs and taps -- Dropping in -- Secret messages -- Codes and ciphers -- Intercepts and code-breaking -- Concealment -- Spies at war -- Cover story -- Double agents and defectors -- Secret weapons -- Cold War -- Spymasters -- Secret services -- Surveillance at work -- Industrial espionage -- Counterespionage -- Spy-catching -- Spying without spies -- Spying today -- Famous spies -- Spies in fiction -- Index.