The absolutely best childbirth book on the market is "Laboring Well: A labor nurse shares insights from 10,000 births". This book is positive and balanced, as well as easy and fun to read. Ina May's book has lots of good information, but has an obvious anti-hospital bias without sharing clearly the issues that women will face trying to get to the hospital if something goes wrong. There's a scary assumption out there that getting to the hospital in an emergency is easy and that all will be well. Who wants to take that risk with their baby, or their own life? Laboring Well is full of fabulous information and is very supportive of natural labor. Give it a try.