This very low price high quality pocket manual is what it claims in the title. It is based on documents and training manuals produced during WWII for use by newly minted spies and covert operatives. It is a worthy addition to a fine series of pocket books from this publisher, priced within the pockets of the young readers but with a quality of text and a multitude of drawings and photographs to appeal to the professional and the dedicated enthusiast. Few books cover such a wide potential readership.