Book and theatre on-line announcements, followed by: Bookwaves, an interview with the late Tony Horwitz about his last work, “Spying on the South,” which was released in trade paperback this past spring. ArtWaves: An interview with Mavis Gallant (1922-2014), legendary New Yorker short story writer, recorded in 1993 while she was on tour for her collection, “Across The Bridge.” Hosted by Richard Wolinsky.