Books
The No-Cry Sleep Solution, Second Edition
2020
The No-Cry Sleep Solution: Gentle Ways to Help Your Baby Sleep Through the Night
2002
The No-Cry Sleep Solution for Newborns: Amazing Sleep from Day One – For Baby and You
2016
Ab ins Bett!
2023
Ketchupmonster und Erbsenpicker
2014
Schlafen statt Schreien
2019