How many of his own novels has William Goldman adapted for the screen?

Four of William Goldman’s novels have been adapted for the screen: Marathon Man (1976), Magic (1978), Heat (1987), and The Princess Bride (1987).

What was Hiawatha’s tribe? The hero of Longfellow's Song of Hiawatha (1855) belonged to the Mohawk tribe, one of the Five Nations of the Iroquois.
For what U.S. periodical was Karl Marx a correspondent? In the 1860s, Karl Marx wrote about politics in Europe for the U.S. periodical the New York Tribune.
Who was the Hobson behind the phrase Hobson’s choice? A Hobson's choice is a situation that forces a person to accept whatever is offered or go without. The phrase was inspired by sixteenth-century entrepreneur Thomas Hobson, who hired out horses in strict…
Who was Robin in Robin and the Seven Hoods (1964)? Robbo, the character "inspired" by Robin Hood, was played by Frank Sinatra. Among the hoods were Dean Martin as Little John and Sammy Davis, Jr., as Will.
How many film versions of Holiday have there been? There were two film versions of Holiday. The 1930 film featured Ann Harding as Linda Se-ton and Robert Ames as John Case, the roles taken by Katharine Hepburn and Cary Grant in the…
What was Danny Thomas’s real name? Danny Thomas's real name was Amos Muzyad Jacobs (or Jahoob).