William Sears, M.D., received his pediatric training at Harvard Medical School's Children's Hospital and Toronto's Hospital for Sick Children. He has practiced as a pediatrician for more than thirty years. Martha Sears is a registered nurse, childbirth educator, and breastfeeding consultant. The Searses are the parents of eight children. Drs. Robert and James Sears are both board-certified pediatricians at the Sears Family Pediatric Practice in San Clemente, California. All four authors live in southern California. More information about the Searses can be found at www.SearsParenting.com and www.AskDrSears.com.