The Happiest Baby on the Block: The New Way to Calm Crying and Help Your Newborn Baby Sleep LongerHarvey Karp4.3
The Happiest Toddler on the Block: How to Eliminate Tantrums and Raise a Patient, Respectful and Cooperative One- to Four-Year-OldHarvey Karp4.6
The Happiest Baby Guide to Great Sleep: Simple Solutions for Kids from Birth to 5 YearsHarvey Karp4.4