Codes, ciphers, and other secrets
By: Karin N. Mango.
Series: A First book
Publisher: F. Watts; Franklin Watts
Published: 1988
Place of publication: New York
Language: eng
Number of pages: 93
Subjects: Cryptography -- Juvenile literature.; Ciphers -- Juvenile literature.; Cryptography.; Ciphers.
Description: Describes the many ways of hiding the real meaning of what someone is trying to say by using a code or replacing the message with a cipher.
Notes: Bibliography: p. 87-88.
Includes index.