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 2003 four books by Dahl, led by "Charlie and the Chocolate Factory" at number 35, ranked among the Top 100 in "The Big Read", a survey of the British public by the BBC to determine the "nation's best-loved novel" of all time. In surveys of UK teachers, parents and students, Dahl is frequently ranked the best children's writer. In a 2006 list for the Royal Society of Literature, Harry Potter creator J. K. Rowling named "Charlie and the Chocolate Factory" one of her top ten books every child should read. In 2012, "Matilda" was ranked number 30 among all-time best