The first half of this book is pretty good, then it gets totally derailed off discipline, and they start giving advice about early weaning and cry-it-out. What? Their parenting advice conflicts with their main discipline advice. "Children do better when they feel better"... Yeah so how does cry-it-out or forcing children to wean make them feel better? I'm going to check out their other books to see if it's helpful, but probably won't spend money on it. Hopefully their other books aren't full of useless, non-evidence-based malarkey.