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![How to Write and Decode Secret Messages by Marvin Miller](https://558130.bdp32.group/rails/active_storage/representations/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBCTyszT3dFPSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--f64dc6bf8521f1c8dd8ea386c9f40399f8ef0dcb/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2RkhKbGMybDZaVjkwYjE5c2FXMXBkRnNIYVFJc0FXa0M5QUU9IiwiZXhwIjpudWxsLCJwdXIiOiJ2YXJpYXRpb24ifX0=--038335c90cf75c275ae4d36968ac417dc4a0a3e3/How%20to%20Write%20and%20Decode%20Secret%20Messages.jpg)
69 pages • first pub 1998 (editions)
ISBN/UID: 9780590373869
Format: Paperback
Language: English
Publisher: Scholastic
Publication date: 01 May 1998
Description
One of the most popular segments in "Boys' Life" magazine, Codemaster is the key to writing and reading dozens of clever codes, including the Pigpen Code, the Inside-Out Code, the Pinhole Code, and the Playing Card Code to the Mixed-Up Math Code, ...
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![How to Write and Decode Secret Messages by Marvin Miller](https://558130.bdp32.group/rails/active_storage/representations/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBCTyszT3dFPSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--f64dc6bf8521f1c8dd8ea386c9f40399f8ef0dcb/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2RkhKbGMybDZaVjkwYjE5c2FXMXBkRnNIYVFJc0FXa0M5QUU9IiwiZXhwIjpudWxsLCJwdXIiOiJ2YXJpYXRpb24ifX0=--038335c90cf75c275ae4d36968ac417dc4a0a3e3/How%20to%20Write%20and%20Decode%20Secret%20Messages.jpg)
69 pages • first pub 1998 (editions)
ISBN/UID: 9780590373869
Format: Paperback
Language: English
Publisher: Scholastic
Publication date: 01 May 1998
Description
One of the most popular segments in "Boys' Life" magazine, Codemaster is the key to writing and reading dozens of clever codes, including the Pigpen Code, the Inside-Out Code, the Pinhole Code, and the Playing Card Code to the Mixed-Up Math Code, ...