The Happiest Book Bundle provides essential guidance for new parents. This collection features two bestselling books by Dr. Harvey Karp: "The Happiest Baby on the Block" and "The Happiest Toddler on the Block." The Happiest Baby book, a revised and updated second edition with over 1 million copies sold, offers ways to calm crying and aid newborn sleep. The national bestseller Happiest Toddler book, also revised and updated, teaches how to manage tantrums and raise respectful, cooperative one- to four-year-olds. Together, they equip parents with foundational knowledge for raising happy, healthy children.