Writing secret codes and sending hidden messages
By: by Gyles Brandreth ; illustrated by Peter Stevenson.
Contributors: Stevenson, Peter, 1953- ill.
Publisher: Sterling Pub. Co.
Published: 1984
Place of publication: New York
Language: eng
Number of pages: 127
Subjects: Ciphers -- Juvenile literature.; Cryptography -- Juvenile literature.; Ciphers.; Cryptography.
Description: Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.
Notes: Includes index.