Logic Puzzles Book for Brain FitnessBy: Lana Barnes Series: Brain Fitness Puzzle Games Activate your brainand have fun!with 90 days of easy to hard logic puzzles. Seeking an intellectual challenge, looking to prevent brain fog, or just wanting to try some new brain games? Test your mind with Logic Puzzles Book for Brain Fitness, a 90 day program of logic puzzles that progress from easy to hard. The wide variety of word based, number based, and visual logic puzzles means you wont be