Take control of your mental workout with Mindworks Brain Training puzzle books! Unlike other puzzle collections, these books are designed by teams of experts to stimulate specific areas of the brain and target the associated mental processes.Each book includes over 125 full-colour puzzles and solutions with comprehensive explanations, as well as difficulty ratings and suggested time limits for each puzzle, so that you can easily find a puzzle to suit your current level and progress as your mental agility increases. These books allow you to train your brain exactly the way you want to!