Thank you for viewing. This is a set of two books on sleep training. I've only flipped through them once, so the inside is very clean. However, the "Sleep Training for Babies and Mothers" book has two folded pages, and the "Gentle Sleep Guide" has a tear on the spine because the cover was removed and played with. I have other parenting books available, and I can offer a 100 yen discount if you purchase them together! Please comment if you're interested. "Gentle Sleep Guide for Babies and Mothers" Etsuko Shimizu, Jun Kamiyama "The Sleepeasy Solution: The Exhausted Parent's Guide to Getting Your Baby to Sleep" Gina Ford Set of 2 books Will be shipped with waterproof packaging. Sleep guide Parenting book Sleep training