You will find 300 entertaining number-placement puzzles in this collection, arranged by five levels of difficulty. Sudoku puzzles are known to boost logical thinking and reduce stress, so whether you´re a sudoku beginner or a more experienced fan this beautiful tropical designed collection will be your ideal puzzling companion. - IMPROVE YOUR SOLVING SKILLS: Each puzzle is graded, from beginner to expert, so you can enjoy the satisfaction of seeing your skill improve as you work through the levels. - EXERCISE YOUR BRAIN: Give your mind a great workout as you find where each missing number fits. - REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles. - GIFT EDITION: Designed with a stylish cover, this collection would make a brilliant gift for all puzzle-lovers out there