A native of the Detroit area, Marcia Muller grew up in a house full of books and self-published three copies of her first novel at age twelve, a tale about her dog complete with primitive illustrations. The "reviews" were generally positive.

Her literary aspirations were put on hold, however, in her third year at the University of Michigan, when her creative writing instructor told her she would never be a writer because she had nothing to say. Instead she turned to journalism, earning a master's degree, but various editors for whom she freelanced noticed her unfortunate tendency to embellish the facts in order to make the pieces more interesting.

In the early 1970s, having moved to California, Muller found herself unemployable and began experimenting with mystery novels, because they were what she liked to read. After three manuscripts and five years of rejection, EDWIN OF THE IRON SHOES, the first novel featuring San Francisco private investigator Sharon McCone, was published by David McKay Company, who then cancelled their mystery list. Four more years passed before St. Martin's Press accepted the second McCone novel, ASK THE CARDS A QUESTION.

In the ensuing thirty-some years, Muller has authored over 35 novels--three of them in collaboration with husband Bill Pronzini--seven short-story collections, and numerous nonfiction articles. Together she and Pronzini have edited a dozen anthologies and a nonfiction book on the mystery genre. In 2005 Muller was named a Grand Master by Mystery Writers of America, the organizationís highest award. Pronzini was named Grand Master in 2008, making them the only living couple to share the award (the other being Margaret Millar ad Ross Macdonald). The Mulzinis, as friends call them, live in Sonoma County, California, in yet another house full of books.