This find the difference book for teens & adults features 50 unique United States National Parks themed picture puzzles! Spot the difference puzzles are a great screen-free activity that help keep your brain in tip-top shape. In fact, three out of four of your brain lobes are activated every time you work on a puzzle! Take a peak at the back cover to learn more. This title features: • over 265 differences to find • varying puzzle styles & difficulties + EASY [15] – MEDIUM [18] – HARD [17] • 80 full-color pages + durable 55 lb. uncoated paper • glossy paperback cover • 8 inches x 10 inches Designed, printed and self-published in the USA *This series has a shipping & handling maximum of $10! No code needed – your order will be adjusted before acceptance :)