April 2 is the birthday of famous Danish storyteller Hans Christian Andersen. The International Board on Books for Youth chose this day to celebrate children's books around the world. Special events and celebrations are held on this day throughout the world. Each year a different National Section of IBBY has the opportunity to be the international sponsor of ICBD. It decides upon a theme and invites a prominent author from the host country to write a message to the children of the world and a well-known illustrator to design a poster.