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 Berlin, who commented: "I thought he might say anything. Could have been pro-Arab or pro-Jew. There was no consistent line. He was a man who followed whims, which meant he would blow up in one direction, so to speak." Amelia Foster, director of the Roald Dahl Museum in Great Missenden, says: "This is again an example of how Dahl refused to take anything seriously, even himself. He was very angry at the Israelis. He had a childish reaction to what was going on in Israel. Dahl wanted to provoke, as he always provoked at dinner. His publisher was a Jew,