Secret writing--codes and messages
By: by Eugene Baker ; illustrated by Lois Axeman.
Contributors: Axeman, Lois.
Series: The Junior detective series
Publisher: Child's World; distributed by Childrens Press
Published: 1980
Place of publication: Elgin, Ill; Chicago, Ill
Language: eng
Number of pages: 32
Subjects: Cryptography -- Juvenile literature.; Ciphers -- Juvenile literature.; Cryptography.; Ciphers.
Description: Discusses a variety of codes and explains how to send and decode messages.