This Left-Brain Puzzles set from Mind Works is perfect for those looking to improve their math skills. The brain teasers included in this set are designed to challenge your mind and sharpen your problem-solving abilities. With a focus on left-brain training, these puzzles are ideal for anyone looking to enhance their cognitive abilities. The puzzles themselves are in excellent condition and have been well-maintained. They provide hours of entertainment and are great for all ages. Whether you're a seasoned puzzle solver or just getting started, this set is sure to provide hours of fun and intellectual stimulation.