- The Happiest Baby on the BlockHarvey Karp
- The happiest toddler on the blockHarvey Karp, Paula Spencer
- El bebé más feliz del barrioHarvey Karp
- The Happiest Baby on the Block; Fully Revised and Updated Second EditionHarvey Karp
- The happiest baby guide to great sleepHarvey Karp
- The Happiest Toddler on the Block : How to Eliminate Tantrums and Raise a Patient, Respectful, and Cooperative One- to Four-Year-OldHarvey Karp
- Gentle baby careElizabeth Pantley, Harvey Karp
- El bebé más felizHarvey Karp, Martín Rodríguez Courel et al.
- Digital typeface libraryHarvey Karp
