Explains what codes are, details some of the famous codes in history--including the Morse, Window and Invisible Ink Codes--and shows how children can invent their own codes
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Anbieter: BooksRun, Philadelphia, PA, USA
Library Binding. Zustand: Fair. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way. Artikel-Nr. 0531041468-7-1-13
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Anbieter: ThriftBooks-Atlanta, AUSTELL, GA, USA
Hardcover. Zustand: Fair. No Jacket. Former library book; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Artikel-Nr. G0531041468I5N10
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