Operation Code-Cracker

I rate this book 4.9/5. This is one of the best code-cracking books I've ever read and I'm really inclined to John Townsend for writing a book about such an amazing idea. I recommend this book to everyone who enjoys solving anagrams and codes. Due to this book, children can get engrossed and intrigued – the concept and idea is just magnificent. A must read book!

Anonymous 19.06.2016