Yann Walcker: Born in 1973, Yann Walcker studied graphic arts and soon decided to write his own children's book as well as poems. He is the author of more than forty stories. Sofie: Sofie is a young illustrator who has already worked for numerous children's book publishers. She also likes to work on illustrating stationary. Her illustrations are very colorful and modern, and successfully illustrate the tropical forest of the Amazon!