Bill Pronzini is simply one of the masters. He seems to have taken a crack at just about every genre: mysteries, noirish thrillers, historicals, locked-room mysteries, adventure novels, spy capers, men's action, westerns, and, of course, his masterful, long-running Nameless private detective series, now entering its fourth decade, with no signs of creative flagging. He's also ghosted several Brett Halliday short stories as Michael Shayne for Mike Shayne's Mystery Magazine, and has managed to collaborate with such fellow writers as John Lutz, Barry Wahlberg, Collin Wilcox and Marcia Muller. Still, if he never ventured into fiction writing, his non-fiction work, as both writer and editor, would still earn him a place in the P.I. genre's Hall of Fame. Besides his two tributes to some of the very worst in crime fiction (what he calls "alternative classics"), Gun in Cheek and Son of Gun in Cheek, and one on western fiction (entitled Six Gun in Cheek, naturally), he's the co-author (with Marcia Muller) of 1001 Midnights.