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 revealing guide gives you the key to unlock the secret languages of spies. Get on the case to discover how to decipher dots aand dashes, fathom flags, and suss a simple cipher. Find out how codes shaped history, won wars nd could even help us talk to aliens. PLUS try your hand at code making and code-breaking. Will you crack under ...
Read More
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 revealing guide gives you the key to unlock the secret languages of spies. Get on the case to discover how to decipher dots aand dashes, fathom flags, and suss a simple cipher. Find out how codes shaped history, won wars nd could even help us talk to aliens. PLUS try your hand at code making and code-breaking. Will you crack under pressure?
Read Less
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Fair. Ex-library book, usual markings. Well read with some wear but still very useable. Creases in front and back covers. Quick dispatch from UK seller.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Dispatched, from the UK, within 48 hours of ordering. Though second-hand, the book is still in very good shape. Minimal signs of usage may include very minor creasing on the cover or on the spine. Ex-library book with stamps on the first page, it is also likely to have a small shelf number sticker on the spine.
