This informational book informed the reader of the role code making has had on the course of human history. The way that the text was written was as if it had been hand written. This allowed the reader to feel as if they were on a secret mission to learn more about codes. This book can be used with middle school students.I would use this book to introduce literacy into math courses. ( )

This book was really interesting. It covers the history of codes and ciphers from Ancient Greece, to modern day. The pages resemble notebook pages, with quotes written sideways, sidebars with ways to create your own codes/ciphers, and lots of pictures. It is well researched and really covers a wide and interesting range of material. Great for upper middle to high school readers. ( )