Over 50 Secret Codes: An Entertaining Activity Book About Writing and Decoding for Kids (Ages 6-9) (Usborne Activities)

Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Semaphore and Morse code, the Grid code used in the American Civil War, Egyptian hieroglyphics, number replacement and alphabet switching codes and more. Each page features a different type of code, with an explanation of how it works and a practice code to crack. All answers are available at the back of the book.

Emily Bone grew up among the rolling hills of Hampshire, writing stories about the ants and birds in her garden. After studying English at Cambridge, she found her dream job at Usborne in 2007. Since then, she's written about many weird and wonderful creatures, along with books on space, fashion and food.