Offering an introduction to the world of secret writing and coded messages, this book contains simple instructions on how to make 12 different code and cipher machines. Some of them are based on devices that have been used by spies for centuries and all of them can be made by using a pencil, scissors, card and glue. There is additional information about each code, including ways of complicating it so that it becomes indecipherable even to other readers of the book.
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Offering an introduction to the world of secret writing and coded messages, this book contains simple instructions on how to make 12 different code and cipher machines. Some of them are based on devices that have been used by spies for centuries and all of them can be made by using a pencil, scissors, card and glue. There is additional information about each code, including ways of complicating it so that it becomes indecipherable even to other readers of the book.
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Seller's Description:
Good. All orders ship by next business day! This is a used paperback book. Has moderate wear on cover and/or pages. Has markings on pages. Spine has been opened/creased. Has ex library labels/markings. For USED books, we cannot guarantee supplemental materials such as CDs, DVDs, access codes and other materials. We are a small company and very thankful for your business!
