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Can you crack the code?
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Pass it on! : all about notes, from secret codes and special inks to fancy folds and dead man's drops
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Mysterious messages : a history of codes and ciphers
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Secret messages : concealment, codes, and other types of ingenious communication
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The woman who smashed codes a true story of love, spies, and the unlikely heroine who outwitted America's enemies
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The woman who smashed codes : a true story of love, spies, and the unlikely heroine who outwitted America's enemies
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The woman who smashed codes a true story of love, spies, and the unlikely heroine who outwitted America's enemies
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The code book :how to make it, break it, hack it, crack it
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The secret agent training manual : how to make and break top secret messages
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The code book how to make it, break it, hack it, crack it
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The handwriting of American records for a period of 300 years
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Typing and keyboarding for everyone: 35 lessons to improve speed and accuracy
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Keyboarding made simple
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Secret codes and hidden messages
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The secret of the skeleton key
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The haunted lighthouse
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The mummy's curse
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The mystery of the pirate's treasure
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Mastering computer typing
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Written by hand : techniques and tips to make your everyday handwriting more beautiful
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Enigma :the battle for the code
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Morse code
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The enigma girls : how ten teenagers broke ciphers, kept secrets, and helped win World War II
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Alpha, Bravo, Charlie : the complete book of nautical codes
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Morse code
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Top secret : a handbook of codes, ciphers, and secret writing
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The code book :how to make it, break it, hack it, crack it
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The code book how to make it, break it, hack it, crack it
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The Navajo code talkers
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In code :a mathematical journey
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Alpha, Bravo, Charlie : the complete book of nautical codes
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Beginner's step-by-step coding course : learn computer programming the easy way
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Centre County, Pennsylvania street atlas
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A dangerous legacy
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A dangerous legacy
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A crack in creation : gene editing and the unthinkable power to control evolution
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Dress coded a novel
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Get coding 2!
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Margie Kelly breaks the dress code
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Genome
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MP3 : the definitive guide
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Sioux code talkers of World War II
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How music got free : the end of an industry, the turn of the century, and the patient zero of piracy
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Samuel Morse, that's who! : the story of the telegraph and Morse code
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Who were the Navajo code talkers?
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Hidden wonders! : a can you see what I see? book
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The inner circle
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Crick : a mind in motion
