The nonprofit Writer's Garret has as its stated mission the education and development of readers, writers and audiences. It stages writing workshops, panel discussions, peer critiques, contests and movie screenings. But the organization's two-year-old Writer's Studio Series, hosted by KERA at Theatre Three, takes the top prize. This year, the series brought best-selling literary stars Margaret Drabble, James Ellroy, Umberto Eco and Walter Mosley to Sunday night readings. KERA radio host Glenn Mitchell interviewed each author, who then read from one of his or her books and answered questions from the audience. Each two-hour session was taped and later played on NPR affiliates. The programs are fascinating, unpredictable and sometimes infuriating, as when politically incorrect and always controversial Ellroy told the audience that John F. Kennedy "got what he deserved." Authors scheduled this fall include Bret Easton Ellis (his new one is Lunar Park), Joan Didion (The Year of Magical Thinking) and Scott Turow. With all the lawyers who want to be writers in town, better get your ticket early for Turow, attorney and author of Presumed Innocent and other novels.