Tag: Ciphers
Top Secret: A Handbook of Codes, Ciphers and Secret Writing
“The author’s upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious.” — SCHOOL LIBRARY JOURNAL (starred review) Pssst! Do you know the difference between a
Codes, Ciphers and Secret Writing (Dover Children’s Activity Books)
“A fascinating, challenging book.” ― A.L.A. BooklistLearn to use the most important codes and methods of secret communication in use since ancient times. Cipher and decipher codes used by