Between James Thurber and Terry Brooks who had a more diverse career as a writer?
Terry Brooks Terence Dean "Terry" Brooks (born January 8, 1944) is an American writer of fantasy fiction. He writes mainly epic fantasy, and has also written two movie novelizations. He has written 23 "New York Times" bestsellers during his writing career, and has over 21 million copies of his books in print. He is one of the biggest-selling living fantasy writers.
James Reasoner James Reasoner (5 June 1953) is an American writer. He is the author of more than 150 books 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.