Top Secret: a handbook of codes by Paul B. Janeczko, 2004
Paul Janeczko dedicates this book: For Teri Lesesne, kind and generous lady whose heart & spirit are grand
This is the book kids have been asking me for since I became a school librarian. This book includes code making, ciphers and secret codes, codebreaking and a codemaker/breaker hall of fame. Highly, highly recommended.
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