The Times 2 popular daily puzzle is back with a third volume of 150 utterly addictive codewords. The concept is simple. Each number represents a letter so starting with the solved letters use your logic & vocabulary to reveal more letters form words & then crack the code! The Codeword series is so popular because you don't need any prior knowledge unlike a crossword. You can just pick up a pen & get puzzling. It steadily increases your vocabulary as the difficulty slowly grows as you progress through the book & even though you'll be working your brain it's the perfect way to unwind.