Harvey Karp

The Happiest Baby on the Block (Updated Edition)

The Happiest Baby on the Block: The New Way to Calm Crying and Help Your Newborn Baby Sleep Longer

The Happiest Baby Guide to Great Sleep: Simple Solutions for Kids from Birth to 5 Years

The Happiest Toddler on the Block: How to Eliminate Tantrums and Raise a Patient, Respectful and Cooperative One- to Four-Year-Old