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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles) Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)
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Sarah
Sarah is on page 24 of 176
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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)

Dan Seitz
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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)

Dan Seitz
Dan Seitz is on page 18 of 176
The opening amusingly discusses school codes. Reminds me of Neal Stephenson's discussion of "kids in treehouses."
— Oct 06, 2019 10:07AM Add a comment
Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)

Martin
Martin is on page 53 of 176
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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)

Mark
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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)

Jason
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Cryptography: The Science of Secret Writing (Dover Brain Games & Puzzles)