Cracking codes
Kimpton, Diana, 1949-2003
Books, Manuscripts
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First the ancient Greeks hid messages under their hair. Now computers create codes no human can crack. This revealing guide gives you the key to unlock the secret languages of spies. Get on the case to discover how to decipher dots and dashes, fathom flags, and suss a simple cipher.
Main title:
Cracking codes / Diana Kimpton ; illustrated by Mike Phillips.
Imprint:
London : Hippo, 2003.
Collation:
158 p. : ill. ; 20 cm.
Series title:
Notes:
Paperback.
ISBN:
04399818409780439981842
Language:
English
BRN:
68554
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