If your baby is a goodsleeper, yes this book is for you. If he sleeps easily but without discipline like on you, in your bed. This book is for you. BUT if your baby has sleep problem, light sleep problem, nightmare or anything else. THIS BOOK IS NOT FOR YOU. Yes, you can make a helpless baby cries until he/she falls sleep.
https://www.amazon.com/Solve-Your-Childs-Sleep-Problems/dp/0743201639