Secret codes

Secret codes

Betty, Ken
Anglais

Synopsis Secret codes

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.
EAN
9781405852227
Éditorial
Année d'édition
2007
langage
Anglais
Collection
PENGUIN ACTIVE READING (+CD)
Haute
300
Largeur
200
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