New Year's Day ends our run of holiday re-packaging of earlier interviews, with provocative pieces from previous Exchanges.
At 8: Ronald Schlieffer and Jerry Vannatta make the case for more than needles and drugs in their book The Chief Concern of Medicine.
At 9: Joni Mitchell in words and song. The folksinging giant is profiled by Katherine Monk in her book Joni: The Creative Odyssey of Joni Mitchell.
