Would give zero stars if I could. After reading half of this book I threw it where it belonged, in the trash. This book that is supposedly filled with "research" only references two sources which are over twenty years dated. Also, I'm pretty positive that the parents Ezzo refers to in his book are completely factious. If a nursing mother wants to ensure the best for her child and her milk production she will not follow Ezzo's advise. She will follow all the backed up data and researched that states the best schedule for breastfed babies is on-demand. Also, the cry-it out method is proven to produce stress hormones that are harmful for an infants mental, physiological and emotional development as well it can lead to behavioral issues in later years ([...]). Mothers, please follow all the reputable organizations and agencies (WHO, CDC, LLLI, AAP) who discourage scheduling bf babies and state that on-demand is best and that state you can not spoil your newborns.