Dean Ray Koontz (born July 9, 1945) is an American author. His novels are billed as suspense thrillers, but frequently incorporate elements of horror, fantasy, science fiction, mystery, and satire. Many of his books have appeared on The New York Times Bestseller List, with 14 hardcovers and 14 paperbacks reaching the number-one position. Koontz wrote under a number of pen names earlier in his career, including "David Axton", "Leigh Nichols", and "Brian Coffey". He has sold over 450 million copies of his work..