This is a hardcover first edition of the novel "Intensity" by Dean Koontz. It was published in 1995 by Knopf Doubleday Publishing Group and has a dust jacket. The book is a psychological thriller with elements of horror and is intended for young adults and adults. The narrative is fictional and written in English, with 310 pages. The book is in very good condition some signs of wear. It will make a great addition to any collection of books on psychological thrillers.