Infant crying, sleep and toddler behaviour are translated into memorable practical techniques in Harvey Karp’s parenting books. The Happiest Baby on the Block explains the “5 S’s”—swaddling, side or stomach holding while awake, shushing, swinging and sucking—as ways of calming young babies, alongside his idea of a “fourth trimester”. The Happiest Toddler on the Block turns to tantrums, communication and emotional regulation in the next stage of childhood. Karp’s prose is upbeat, highly structured and oriented towards techniques rather than a broad theory of family life. Safety guidance around sleep and infant care changes over time, so current professional recommendations should take priority over older editions. The catalogue is most easily found through His books baby soothing, infant sleep and practical toddler parenting. Read more Less