How many Stephen King novels have characters who are writers?

It's impossible to give an exact number of Stephen King novels with characters who are writers, as the line between "character who is a writer" and "character who simply writes something" can be blurry.

However, many of King's novels feature characters who are writers in some capacity. Here are some examples:

* Protagonists who are writers:

* Jack Torrance (The Shining)

* Paul Sheldon (Misery)

* Bill Denbrough (IT)

* Roland Deschain (The Dark Tower series)

* Johnny Smith (The Stand)

* Mike Hanlon (IT)

* Jack Sawyer (The Running Man)

* Jake Epping (11/22/63)

* Characters who are writers as a secondary aspect:

* Holly Gibney (The Outsider, The Institute, etc.)

* Rita Hayworth (The Shining)

* Danny Torrance (Doctor Sleep)

* Ben Hanscom (IT)

* Eddie Kaspbrak (IT)

King himself is a writer, and his experiences and fascination with the craft often bleed into his stories, resulting in complex and compelling portrayals of writers within his works.

If you're looking for a more specific answer, you could try searching for a list of Stephen King novels featuring writers as protagonists. This would give you a more focused list, but it's still difficult to say definitively how many of his novels feature writers in some form.