James Reasoner (born June 5, 1953) is an American writer. He is the author of more than 350 novels and many short stories in a career spanning more than thirty years. Reasoner has used at least nineteen pseudonyms, in addition to his own name: Jim Austin; Peter Danielson; Terrance Duncan; Tom Early; Wesley Ellis; Tabor Evans; Jake Foster; William Grant; Matthew Hart; Livia James; Mike Jameson; Justin Ladd; Jake Logan; Hank Mitchum; Lee Morgan; J. L. Reasoner (with his wife); Dana Fuller Ross; Adam Rutledge; and Jon Sharpe. Since most of Reasoner's books were written as part of various existing Western fiction series, many of his pseudonyms were publishing "house" names that may have been used by other authors who contributed to those series.[1][2][3][4]