Codes and Codebreaking.
Title:
Codes and Codebreaking.
Personal Author EPSB:
Summary:
Explains how spies throught the ages have sent messages. Complex new codes are constantly being developed that take the most skillful codebreaker to break. Some of these messages have caused wars, and others have saved lives. Codebreaking is a vital part of the spy's trade today.
Year Published:
2010
1900-1999
Series:
ISBN:
9781599203577
Publisher:
Mankato, Minnestoa : Smart Apple Media, 2010.