Prerequisites for

Yardleygrams
Yardley, Herbert O. 1932 (Currently out of print). 190 pages.
Categories: Cryptanalysis, Pen and Paper
Apparently, Yardley didn't actually write this book, but instead, it was ghost written by an engineer working at AT&T (see "Cryptology: Yesterday, Today, and Tomorrow" for more information). The book is mostly a collection of cryptograms. Copies are hard to come by, and fair to good condition copies of this book run anywhere from $150 to $400.


Recommended prerequisite books:
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Suggested mathematical background in:

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Suggested computer language experience:

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