Veteran cryptographer's simply and clearly written how-to book provides youngsters 8 and up with all the information needed to decipher 56 secret messages. Funny cartoons and easy-to-follow instructions explain how to break six different codes, including simple letter grouping, reverse trail, shift code, key word code, date shift code and twisted path code. Examples and solutions.
Dover Original.
"Sinopsis" puede pertenecer a otra edición de este libro.
Veteran cryptographer's simply and clearly written how-to book provides youngsters 8 and up with all the information needed to decipher 56 secret messages. Funny cartoons and easy-to-follow instructions explain how to break six different codes, including simple letter grouping, reverse trail, shift code, key word code, date shift code and twisted path code. Examples and solutions.
Dover Original.
"Sobre este título" puede pertenecer a otra edición de este libro.
Librería: Gulf Coast Books, Cypress, TX, Estados Unidos de America
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Librería: World of Books (was SecondSale), Montgomery, IL, Estados Unidos de America
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Librería: Evergreen Goodwill, Seattle, WA, Estados Unidos de America
paperback. Condición: Good. Nº de ref. del artículo: mon0000362642
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Librería: Half Price Books Inc., Dallas, TX, Estados Unidos de America
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Librería: Better World Books: West, Reno, NV, Estados Unidos de America
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Librería: Better World Books: West, Reno, NV, Estados Unidos de America
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Librería: ThriftBooks-Reno, Reno, NV, Estados Unidos de America
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Paperback. Condición: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Nº de ref. del artículo: G0486291464I5N00
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