Buchdetails
Format
Taschenbuch
Seiten
160
Sprache
Englisch
Veröffentlicht
Jan 1, 2010
Verlag
Scholastic
ISBN-10
1407114565
ISBN-13
9781407114569
Beschreibung
First the ancient Greeks hid messages under their hair. Then Mary Queen of Scots completely lost her head because of a cracked code. Now computers create codes no human can crack. This is the ultimate guide to unlocking the secret language of spies.