Harvey Karp. M.D. In perhaps the most important parenting book of the decade, Dr. Harvey Karp reveals an extraordinary treasure sought by parents for centuries --an automatic off-switch for their baby’s crying. The 5 “S’s the simple steps (swaddling, side/stomach position, shushing, swinging and sucking) that trigger the calming reflex. For centuries, parents have tried these methods only to fail because, as with a knee reflex, the calming reflex only works when it is triggered in precisely the right way. Unlike other books that merely list these techniques Dr. Karp teaches parents exactly how to do them, to guide cranky infants to calm and easy babies to serenity in minutes…and help them sleep longer too.