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Customer Review

on 9 January 2010
To be honest, the book concentrates more on the highly-researched story of the breaking of the enigma code and the personalities from various Allied countries involved in this process, but the author has taken the trouble to provide appendices in the book which illustrate and explain the technical problems faced by the code-breakers, and explanations of their solutions.

It is possible to read the book and ignore the appendices, and still have an enjoyable read of a quiltwork of fragments of interlocking individual contributions to the solution of the 'unbreakable' cryptographic machine,
but if like me, you prefer to understand what was going on at each stage, then this information is presented in technical summaries in the appendices.

Of course, the book is too small to give blueprints for Enigma construction, or even for full circuit diagrams, but it helps to fill the gap left by all other contributors, who simply recount the history of the Allied code-breaking efforts to the total exclusion of any illumination of the work involved.
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