Book Details
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.
Read more - ISBN13 9781405852227
- ISBN10 1405852224
- Fecha de publicación 17/07/2007
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Secret Codes (CD-Rom Pack) (Penguin Active Reading level 4)
- By
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- PENGUIN BOOKS (2007)
- 9781405852227



