Iyanla Vanzant is a former attorney, spiritual teacher and self-help expert who was a regular on the show in the late 1990s. She started the show in its 12th season and became known for her no-nonsense, hard-hitting, and often humorous advice. Vanzant's take on everything from cheating spouses to financial struggles connected with viewers and, at times, Winfrey sat in the audience while Vanzant led the show. Her books "In the Meantime" and "One Day My Soul Just Opened Up" became "New York Times" bestsellers.