Dagmar Geisler is a German author and illustrator. She studied graphic design at the University of Applied Sciences in Wiesbaden and worked for several publishing houses and broadcasting companies. Today, Dagmar focuses mainly on children's books, both as an illustrator and an author. She illustrated My Body Belongs to Me from My Head to My Toes, which received the Silver Feather (Silberne Feder) Children's Book Prize from the German Medical Women's Association, and is the illustrator of My Feelings and Me. She lives with her family in Munich, Germany.

Nikolai Renger was born in Karlsruhe and studied visual communication at the HFG in Pforzheim. He works as a freelance illustrator for various publishers and agencies and has been working at Atelier Remise in Karlsruhe since 2013.