Crack codes, decipher ciphers and unravel mysteries with this brain-boosting collection of cryptic puzzles, inspired by the brilliant mind of famous World War II codebreaker, Alan Turing. Alan Turing was a genius codebreaker who played a pivotal role in cracking coded messages from Nazi forces. This puzzle book will put your own codebreaking skills to the test, featuring a breathing array of challenges, including substitution ciphers, transposition ciphers, and more complex cryptographic techniques. The puzzles become progressively harder, so you can start with the (relatively) easy ones and build up to the truly expert level tests. With clues and hints to help you on your way, you'll need to use your logical thinking, pattern recognition, and deduction skills to break the codes and reveal the hidden messages.Foreworded by Dermot Turing, the nephew of Alan Turing, this puzzle book is a great way to flex your mental muscles and see if you have what it takes to become a codebreaker yourself!This book proudly supports the work of The Turing Trust, the charity set up by Alan Turing's closest family in his memory. The Trust commemorates his remarkable achievements by making computers available to less privileged communities in Africa.