The Happiest Baby On The Block • Harvey Karp M.D. I bought this book after my friend Tia, who has a two year old, strongly recommended it. She told me it was a lifesaver when her baby was a newborn and wouldn’t stop crying. The book helps parents learn how to re-create the womb-like environment baby was in for nine months, sooth him and curb hours of crying. Its major principles include soothing your baby using the five “S’s”: Swaddling, Side/Stomach, Shushing, Swinging, and Sucking.