[1][2] Active as a bookseller, from 1972 to present; Ziesing was in publishing, from the mid-1980s into 1998.
Originally based in Willimantic, Connecticut and in partnership with his brother Michael (born 1946), he published two books by Gene Wolfe under the name Ziesing Brothers.
[2] 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.
For most there was also a signed, numbered, limited edition in a slipcase, and for a very few there was an "ultra-limited" version: The Night of the Cooters ultra-limited came with a martin base statue to hold the book, and the Mefisto in Onyx ultra-limited included an actual cage for the book.