Pacific Food Heidi Köster, Claus Hiltner E-Book (epub) 11.10.2017

Baby Sleep Guide to Promote Healthy Sleep Habits: Wise Tips and Tricks to Help Your Newborn Sleep Through the Night, Proven Modern Training to Calm Crying Infants for No Cry Nights and a Happy Child Heidi Oster E-Book (epub) 13.10.2018

Complete Guide to Pregnancy and Newborn Sleep Training: A New Mom's Survival Handbook, What to Expect in Labor, Wise Tips and Tricks for No Cry Nights and a Happy Baby Heidi Oster E-Book (epub) 02.03.2019