Discusses the history and different varieties of codes and ciphers, describing code machines, signals, sign language, picture languages, and hidden messages.

This book contains 25 secret codes for your child to crack! Suitable for ages 6 - 10, this book contains clues and answers as well as space to create their own codes. Flip the book back to front to find the clues! Your child will soon be a code cracking and code writing extraordinaire! The book follows Charlie as they get into different situations and you will have to crack the code to answer the questions. This book contains: Crpytograms Morse Code Pigpen Cipher Secret Pirates Code And many more codes to crack! Have fun cracking the codes!

The book includes 50 cryptograms for children to solve. These cryptogram puzzles are in the form of secret and hidden words written in terms of codes as numbers. The cryptograms are subdivided into five categories of difficulty as follows: Super Easy, Easy, Medium, Difficult, and Super Difficult. The codes increase gradually in difficulty from the beginning of the book till the end. They start with short and simple sentences and gradually evolve into long and complicated paragraphs. These puzzles provide great fun and entertainment for kids of ages 7-11 years. They also provide great brain stimulation. The solutions to all the puzzles are provided at the end of the book.