Arnoud Wierstra (b. 1968) began his studies at art school but moved into psychology. In 2010, he made his debut with the wordless picture book Feest (Party), in which thirteen characters are on their way to the same birthday party. One of those characters returns as the protagonist of his second picture book, De grote dag (The Big Day). Wierstra, who admits that he had difficulty writing essays at school as a boy, took his inspiration from the wordless picture books created by Charlotte Dematons and Thé Tjong-Khing.