Question: Julia Donaldson's illustrated children's books include Room on the Broom, Stick Man and which story that has sold 13 million copies?
Sentence (from "Julia Donaldson"): She is best known for her popular rhyming stories for children, especially those illustrated by Axel Scheffler, which include "The Gruffalo", "Room on the Broom" and "Stick Man".
Relevant evidence: Yes