Purchased around 2015. I've read it several times, but it's in good condition with no noticeable damage. This book explains things even adults might not know, in a way that's easy for children to understand. It's a great book for gaining knowledge and education ✨ Price: 800 yen (top), 850 yen (bottom left), 900 yen (bottom right) (excluding tax) Supervised by: Tetsuya Murayama