The Happiest Baby on the Block: A New Way to Calm Crying and Help your Newborn Baby Sleep Longer by Harvey Karp Karp believes that babies are born one trimester too early. He states in the book that newborns could greatly benefit from an extra three months in the womb. Since babies are born 3 months too soon, often newborns are diagnosed with colic when … Continue reading Book Review: The Happiest Baby on the Block