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Language: en
Pages: 144
Pages: 144
Type: BOOK - Published: 2014-07-15 - Publisher: Skyhorse
Ever since humans first began to communicate, we’ve had secrets to keep — secrets of state, war, business, or the heart. From the moment the first secret me
Language: en
Pages: 33
Pages: 33
Type: BOOK - Published: 2010 - Publisher: Capstone
"Discusses different methods for breaking secret codes"--Provided by publisher.
Language: en
Pages: 18
Pages: 18
Type: BOOK - Published: 2010-07 - Publisher: Capstone
"Discusses different methods for speaking secret codes"--Provided by publisher.
Language: en
Pages: 86
Pages: 86
Type: BOOK - Published: 2013-05-22 - Publisher: Courier Corporation
Simply and clearly written book, filled with cartoons and easy-to-follow instructions, tells youngsters 8 and up how to break 6 different types of coded message
Language: en
Pages: 272
Pages: 272
Type: BOOK - Published: 2002-05-14 - Publisher: Delacorte Press
"As gripping as a good thriller." --The Washington Post Unpack the science of secrecy and discover the methods behind cryptography--the encoding and decoding of