The Happiest Baby on the Block

The Happiest Baby on the Block encourages caregivers to understand newborn behavior through the lens of biological adaptation rather than frustration. Babies cry not because they are misbehaving but because they are neurologically unprepared for the world. By treating the early months as a fourth trimester and using the Five S’s—swaddling, side/stomach holding, shushing, swinging, and sucking—parents can activate the calming reflex, ease overstimulation, reduce colic, and support healthy sleep patterns. Combined with attentive monitoring for medical issues and the cultivation of consistent routines, Karp’s approach empowers caregivers with both knowledge and confidence. Ultimately, the book reminds us that babies need nurturing connection, rhythmic comfort, and patient guidance to thrive—and with the right tools, parents can restore peace, rest, and joy during this intense season of life.

Dr. Harvey Karp is a pediatrician, child development expert, and advocate for newborn wellbeing. He has spent decades researching infant behavior and helping families navigate early parenthood. Karp is widely known for his soothing techniques, the Five S’s method, and his ongoing work to improve sleep and reduce parental stress. His warm, science-based guidance continues to influence parenting practices worldwide and reshape how caregivers understand the earliest months of life.