Brilliant Brain Activity Book this series of five books is a perfect blend of fun activities, puzzles, and educational lessons. This beautifully illustrated series is perfect for bright young enthusiasts and is sure to keep them engaged and entertained. Ideal for age group 67 Five books of 80 pages each Ideal for primary school students Clear explanations, examples, and a variety of exercises Cute cover design Colorful presentationThis series is designed to promote relaxation, improve critical thinking, and develop the motor skills of children. These books of short mental exercises will help children to make new neural pathways and have fun with childcentric themes.