Manuela Olten is a freelance illustrator. Her debut picture book, Real Guys (Beltz), received the Oldenburg Children's Book Prize and was nominated for the German Youth Literature Prize. She lives in Germany. Sabine Lipan worked as a teacher, journalist, copywriter, and speechwriter before becoming an author in 2005. Since then she has published a dozen children's books, and she currently lives in Germany. Visit her website at www.sabine-lipan.de.