who wrote willy wonka

The book "Charlie and the Chocolate Factory," which features the character Willy Wonka, was written by British author Roald Dahl and published in 1964. Roald Dahl also wrote the screenplay for the 1971 film "Willy Wonka & the Chocolate Factory," which was based on his novel, although the screenplay underwent uncredited rewrites by David Seltzer due to creative differences during the film's production.