This collection of 140 intriguing and challenging codebreaking puzzles are produced in association with the Bletchley Park Trust. Follow in the footsteps of World War II codebreakers and decode the encrypted messages within. These puzzles include: • Anagrams • Logical reasoning • Encryption word problems • Logic grids • And more! Designed with a retro 1940s cover evoking wartime Britain, this delightful book would make a wonderful gift.ABOUT THE SERIES: This book forms part of a series of puzzles books produced by the Bletchley Park Trust, a vibrant and fascinating heritage site celebrating the World War II codebreakers who were stationed there. Sales of this book support its running.