Pulitzer Prize winner Bill Dedman, co-author of "Empty Mansions: The Mysterious Life of Huguette Clark and the Spending of a Great American Fortune," will discuss the challenges of researching and writing a nonfiction biography/history at the next Chattanooga Writers Guild meeting, set for 6:30-8 p.m. Tuesday, March 11, at the Chattanooga Public Library, 1001 Broad St. An investigative reporter for NBC News, Dedman got his start in journalism at age 16 as a copy boy at The Chattanooga Times. He has written for The Boston Globe, The Washington Post and The New York Times and was the first director of computer-assisted reporting for The Associated Press. He won his Pulitzer for investigative reporting in 1989 while working for The Atlanta Journal-Constitution. Admission to his address is free. For more information, call 423-757-5310.