Codes, Ciphers and Secret Writing (Dover Children's Activity Books)

I bought this for my young grandson. It will set his imagination on fire. I can't wait to see his face when he gets it. Great book for kids to discover code making and code breaking and what kid doesn't like codes.

Brilliant. Excellent introductory summary into codes and ciphers, and some interesting history about their different uses over time. Great for explaining the different types of codes and ciphers and how you can write them yourself. Would highly recommend and is a very cheap alternative to the more detailed, high-level options.

Love this kind of book and love codes. Found it very easy to understand. I also enjoyed learning about the history behind all the codes.

Very useful for introducing ciphers to students

Brilliant, Jewel of a book

Great book! I'm teaching criptography at High School and this book is perfect for students.

Amazing book.

This book was advertised as being suitable for children. It is not. It is far too academic.

Good info for beginners

Love it

My husband had a copy of this book when he was in elementary school, and after 20 years of reading in the car, at home, and sharing it with our young children, it was time for it to retire. Then my 9yo started Bear Cub Scouts and for part of the STEM/NOVA awards, he needed to learn about codes and ciphers. I instantly looked this book up and bought a copy. My son and my husband work on this together. It's so fun to see him learning about codes, and being able to easily write secret messages to his dad. It's a great book for boys who like puzzles (or secret messages - so pretty much all boys!)

A good and brief primer on cryptography (non-tech). Interesting read and the author's writing style left me wanting more. Would be useful for part of a math class with some hands on exercises or for someone desiring an exploration of a variety of (do-able) cryptography styles. Equally enjoyable for math and non-math types.

Fabulous book... learned a lot of thing... Thank you 🙏🏼