Roald Dahl on 13 September is celebrated as "Roald Dahl Day" in Africa, the United Kingdom and Latin America. In honour of Dahl, the Royal Gibraltar Post Office issued a set of four stamps in 2010 featuring Quentin Blake's original illustrations for four of the children's books written by Dahl during his long career; "The BFG", "The Twits", "Charlie and the Chocolate Factory", and "Matilda". A set of six stamps was issued by Royal Mail in 2012, featuring Blake's illustrations for "Charlie and the Chocolate Factory", "The Twits", "The Witches", "Matilda", "Fantastic Mr Fox", and "James and the Giant Peach". Dahl's influence
Roald Dahl's Willy Wonka (musical) shoes". Roald Dahl's Willy Wonka (musical) Roald Dahl's Willy Wonka is a musical that combines elements of both Roald Dahl's book "Charlie and the Chocolate Factory" and of the 1971 movie "Willy Wonka & the Chocolate Factory" with newly created material. The musical has several versions: the original version which premiered in 2004, the Junior version, the Kids version, and the Theatre for Young Audiences version. All are owned by Music Theatre International, the company that owns the Willy Wonka license. After getting approval from the Dahl estate, Tim McDonald and Leslie Bricusse worked together on the play. McDonald said