Manga Guide to Understanding Napping Training from 0 Years Old A Gentle Sleep Guide for Babies and Moms Author: Etsuko Shimizu Price: ¥1,430 ✼••┈┈┈┈••✼••┈┈┈┈••✼••┈┈┈┈••✼ ☆☆The Definitive Guide to Sleep Training☆☆ This book was a great help during my son's sleep training! The manga format made it easy to read, even when sleep-deprived. Highly recommended for moms struggling with sleep and expectant mothers! I've read it a few times and kept it on the bookshelf, so it's in almost new condition.