Exercise your mind with the ultimate collection of brain gamesKeeping your brain healthy is just as important as taking care of your body. While all puzzles are great for brain health, different kinds of puzzles strengthen different mental skills. Sudoku is good for number sense.Any good workout makes you stronger over time, and the puzzles in this book are no exception. Unlike other puzzle books for adults, these puzzles progress through four different challenge levels, so you can watch your puzzling skills improve while strengthening your mind.Sharpen your pencils and start building brainpower today, with the best choice for brain health among puzzle books for adults.