I have other baby books for sale too! I'll discount 100 yen for combined purchases. I'm not considering price reductions at this time. As it's been several years, there is some fading and wear on the cover, but the inside is clean. I would appreciate it if those who understand that this is stored at home and has been inspected by a non-professional would purchase it. "Understanding Babies! The Mysteries of Babies Explained" Tamagawa University Brain Science Institute Price: ¥520