The 1977-born author Peggy Gierke went to university in Berlin and studied education at the Free University. After she worked in the field of science and explored especially the issues of language support and quality kindergarten, she decided to finally gather experience working in practice. She is currently working as a teacher in a daycare center. She lives with her partner and their two sons in Berlin. Children's literature, the author has always loved, both in their own childhood, as well as a teacher and as a mother. With the invention of various figures that fascinated her children in preschool, originated as a family project, the trademark adventure series Erfleberf which is dedicated to her own sons.