Description
For thousands of years people have used codes and ciphers to keep secrets from people who will do anything to learn them. How did secret messages cause a queen to lose her head? How have lost languages finally been understood? How did one little-known language help a country win a war? Read this book and find out.
Book Details
Format
Paperback
Pages
80 pages
Language
English
Published
Jun 18, 2007
Publisher
Penguin
ISBN-10
1405850876
ISBN-13
9781405850872