How long does it usually take Stephen King to write one book?

On average, it takes Stephen King about a year to write a book. However, some books have taken him longer, such as _The Stand_ which took six years to write. Other books, such as _Carrie_, were written in a matter of months. King typically writes first drafts by hand in spiral notebooks, and then revises them extensively on his computer. He also works closely with his editor, Chuck Verrill, during the revision process.