How many words was in Stephen King longest book and what is it called?

Answer 1

If you mean one individual book it is "The Stand", if you mean a series then it is "The Dark Tower". This will soon change with the release of Under The Dome, his upcoming novel. As of November 10th, 2009, his longest book will be Under The Dome.

Answer 2

This depends on your definition of book. I would argue that The Dark Tower Series can be considered on Book (story), which is seven volumes and counting which has about 3700+ pages. However, the previous answer was incorrect the longest single volume story (book) written by King would be his uncut version of The Stand not It.

Answer 3

Stephen King's longest book is "It" with approximately 444,414 words.