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Code Making, Code Breaking (Collins Big Cat)

HarperCollins UK

$19.19 - $23.99
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UPC:
9780007336449
Maximum Purchase:
2 units
Binding:
Paperback
Publication Date:
2011-01-01
Author:
Richard Platt
Language:
english
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What are codes for and who uses them? How do you make a code, how do you break a code? If you think only spies and soldiers use codes, you're wrong! Find out how codes have been used throughout history, from ancient Egypt through to the Cold War.