Also credited as Mark Tiedemann and M. William Tiedemann.

Mark W. Tiedemann has published twelve novels---three in the Asimov's Robot Universe series, /Mirage, Chimera /and/ Aurora/---three in his own Secantis Sequence, /Compass Reach, Metal of Night, /and /Peace & Memory/---as well as stand-alones /Realtime, Hour of the Wolf/ (a Terminator novel), and /Remains/, plus /Of Stars & Shadows/, one of the Yard Dog Doubledog series, Logic of Departure, and the historical novel Granger's Crossing. As well, he has published over seventy-five short stories, all this between 1990 and 2023. /Compass Reach/ was shortlisted for the Philip K. Dick Award in 2002 and /Remains /was shortlisted for the James Tiptree Jr. Award in 2006.

For five years he served as president of the Missouri Center for the Book (http://books.missouri.org) from which position he has recently stepped down. He is now concentrating on writing new novels, a few short stories, and stirring a little chaos in the blogosphere at DangerousIntersection.org and his own blog at MarkTiedemann.com

Oh, he still does a little photography and has started dabbling in art again after a long hiatus.