Train Your Brain! Number Puzzles

Engaging readers of all ages, this puzzle book series offers a variety of mind-expanding challenges, including classic riddles, code-cracking games, and clever Japanese puzzles. Each activity encourages mental exercise, enhancing sharpness and problem-solving skills. Vibrantly illustrated by Evelyn Rogers, these dynamic books are perfect for solo or group challenges, making them suitable for anyone from 9 to 99. With a focus on fun and creativity, they promise an entertaining way to stimulate the mind.