I first became aware of his work in 1983, when Cycle of the Werewolf was published in hardcover. A very short Stephen King "novel" with astonishing illustrations by Wrightson, my 12-year-old self was obsessed with it from the first time I saw a copy on that bookstore shelf. I saved up my paper route money and bought a copy ($28.95!) and pored over those great and gory images. Even smuggled the book into school to astonish my classmates. I'm virtually positive it was my first King story as well.
Rest well, Mr. Wrightson