I can't find the sales figures but I know Dean Koontz has sold more than a hundred million books and probably three or four times that many since some of them sell more than ten million apiece. Sure he invents spellbinding stories, unqiue milieus, likeable protagonists and nail-biting suspense. But his real secret is simply his writing style. Here's a sample from Odd Thomas, the first novel in a trilogy he began in 2003. I'm sure this passage is just a throwaway and we'll never hear about Thomas's grandmother again except a few more pithy homilies, yet he put this much thought and effort into describing her: I read the sequel first and Granny is never mentioned, yet Odd Thomas's character shows the influence of having this person fill an important role in his life. It's a nice technique for character development and a very entertaining way to write. If you enjoyed this passage then you'll love Dean Koontz's books.