David Kahn – Author Of Books (The Reader of Gentlemen’s Mail) About Codes, Codebreakers, Cryptography History, Political And Military Intelligence
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The Washington Post

"Kahn has produced a tour de force…. The volume is an anthology of a hundred detective stories, one more ingenious than the last, and all real, central to the fate of armies and kingdoms…Magnificent."

The Christian Science Monitor

"A literary blockbuster… for many evenings of gripping reading, no better choice can be made than this book."


"Perhaps the best and most complete account of cryptography yet published."

The New York Times Book Review

"A notable achievement… Mr. Kahn has presented the specialist and the general public with a lavishly comprehensive introduction to a subject of basic significance for both."

Prepublication National Security Agency evaluation, now declassified

"The book in its entirety constitutes the most publicly revealing picture that has ever been presented of U.S. Sigint activities and the agencies engaged in this field."

more of David Kahn's books:

Seizing The Enigma

Kahn on Codes

Hitler's Spy

Copyright © 2008 David Kahn. All rights reserved.