This author recommends you leave for baby to cry for hours, screaming until it vomits. Babies cry to communicate. They need love, attention, warmth, maybe a feed, maybe they’re too cold or hot who knows but they spent 9 months inside a warm safe womb and then when born are forced to behave like an adult- I honestly do not know whats worse- the book itself or the people that actually follow it. Would give 0 stars if possible. Atrocious.