I found this a very interesting read. I certainly made me think at times!

Interesting book, but could use more pictures. It's also one of those books you need to stop and start several times to get thorugh, but overall good for the subject matter.

There is a lot in this book. While most of the cases presented are unsolved ciphers there are a few solved ones. There is a some fascinating history here. Included are well known cases like the Zodiac Killer and The Voynich manuscript along with lesser known ones. There is also a lot of technical information so you can try and solve some puzzles and ciphers on your own. Enjoy these unsolved mysteries.

I was unable to read this book, due to my school blocking the downloaded documents.

The ONLY reason I gave this book 1 star is because I could not get it to download to my Kindle in the .pdf format. All I ever got were error messages. I'll change my rating if and when the publisher gets it together and provides it in e-book format.