Secret Messages : Concealment Codes And Other Types Of Ingenious Communication

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Summary: Secret research?
Review: The biggest problem with this book is that it has the feel of a couple of people sitting around swapping urban legends. The authors rarely back up their stories with any sort of facts or attribution. And with at least one unforgivable factual error (Truman ordered the dropping of the atomic bomb, not Roosevelt), the authors' credibility seems suspect. Most of the brief stories presented here -- and there are many stories -- are mildly entertaining, but on too many occasions, you have to wonder where on Earth they got their information from. Sadly, too often, the reader is never told.

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Summary: Fascinating Overview of Communication Methods
Review: This is a wonderful overview of the ways we try to communicate in secret. You don't have to be a PhD to understand the methodology of the communication styles featured in the book. Recommended for anyone with a beginning interest in our "secret" history.