King graduated from the University of Maine in 1970 with a bachelor’s degree in English. While writing short stories he supported himself by teaching and working as a janitor, among other jobs. His first published novel, Carrie, about a tormented teenage girl gifted with telekinetic powers, appeared in 1974 (film 1976 and 2013) and was an immediate popular success.

Carrie was the first of many novels in which King blended horror, the macabre, fantasy, and science fiction.

In his books King explored almost every terror-producing theme imaginable, from vampires, rabid dogs, deranged killers, and a pyromaniac to ghosts, extrasensory perception and telekinesis, biological warfare, and even a malevolent automobile. In his later fiction, King departed from the horror genre to provide sharply detailed psychological portraits of his protagonists, many of them women, who confront difficult and challenging circumstances.

His work consistently addressed such themes as the potential for politics and technology to disrupt or even destroy an individual human life. Obsession, the forms it can assume, and its power to wreck individuals, families, and whole communities was a recurring theme in King’s fiction, driving the narratives of Christine, Misery, and Needful Things.

By the early 1990s King’s books had sold more than 100 million copies worldwide, and his name had become synonymous with the genre of horror fiction.

King wrote several motion-picture screenplays. Some of his novels were adapted for the screen by such directors as John Carpenter, David Cronenberg, Brian De Palma, Stanley Kubrick, and Rob Reiner.

According to britannica.com