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Title: I didn't know what I didn't know
Review: Very interesting reading. I expected a book that would end with a basic lesson modern in cryptography, and instead got a wonderful history of all forms of secrecy and information hiding. The best part is that it was fun too! This book will interest amateur linguists, computer programmers, mathematicials, historians, and policitians. There's just so much perspective and insight here. The book gets a little slow at times, but if you make it all the way to the end you'll find your self equipped to talk about a whole range of topics you never knew existed.
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