He has written a couple of books about his many decades as a Hollywood screenwriter: "Adventures in the Screen Trade" and "Which Lie Did I Tell?".
Both books are very informative and I would recommend them to writers in ANY field.
I also recommend Syd FieldText's books beginning with "Screenplay".
Above all you MUST read Robert McKee's "STORY" as it is the quintessential tome on narrative, both cinematic and other.
Plus anything by Joseph Campbell is a must.
William Goldman works as a professional screenwriter and screenplay doctor he also wrote "The Princess Bride".
Another great site of information is Ted Elliott and Terry Rossio's WordPlay.
That's if you're interested.