Destroy after reading
Subtitle: the world of secret codes
By: Mary Colson.
Series: Culture in action
Publisher: Raintree
Published: 2011
Place of publication: Chicago, Ill
Language: eng
ISBN-13: 9781410939272
Subjects: Cryptography -- Juvenile literature; Ciphers -- Juvenile literature; Cryptography -- History -- Juvenile literature; Ciphers -- History -- Juvenile literature
Genres: Juvenile literature
Notes: Includes bibliographical references and index.
Table of contents: title: What's so special about secret codes?; title: Early codes; title: Code symbols and cracking codes; title: Code school and the enigma machine; title: Coding languages; title: Codes of today and tomorrow; title: Glossary; title: Find out more; title: Index.