David Ritz: Legendary ghost writer (for everyone from Aretha to Marvin Gaye to Sinbad and Scott Weiland), song writer, liner notes penner

On what it takes to ghost writer another person's autobiography; of what it's like to see musicians you love and admire self-destruct; on his contributions to Marvin Gaye's "Sexual Healing"; on the impact stuttering has had on his career.