From the history of codemaking to practical examples and tips for cracking your own codes, "Need to Know? - Codes and Ciphers" covers everything you have ever wanted to know about this area in a clear and easy to understand way. Why do we use codes? Why do we need them? From the moment we began communicating, we have looked for ways to make our messages concise and clear; but with the advent of wa...
Series: Collins Need to Know?
Paperback: 192 pages
Publisher: Collins (May 2, 2006)
Product Dimensions: 5.8 x 0.5 x 8.3 inches
Amazon Rank: 14248898
Format: PDF ePub djvu book
reviews: Great book for learning basic ciphers and codes. Nice illustrations....
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