Mark V. Ziesing is a small press publisher and bookseller. Active as a bookseller from 1972 to present, Ziesing was active in publishing from the mid-1980s into the late 1990s. The Ziesing publishing imprint specialized in science fiction, horror, and other forms of speculative fiction. Originally based in Willimantic, Connecticut and in partnership with his brother, he published two books by Gene Wolfe under the Ziesing Brothers imprint. He later published books by Philip K. Dick, Stephen King, Harlan Ellison, Howard Waldrop, Bruce Sterling, Joe R. Lansdale, and Lucius Shepard, among others. In 1989 he returned to his home state, to Shingletown, California, where he and his wife Cindy continue to operate a catalog-based book selling business under the name Ziesing Books.