Teachers have been instrumental to Oprah's Book Club 2.0 author Ayana Mathis. The Twelve Tribes of Hattie writer credits her mentor, Pulitzer Prize-winner Marilynne Robinson, with giving her three invaluable pieces of advice about writing. Watch as she reveals them to Oprah.

Learn how you can participate in Oprah's Book Club 2.0! Then, tune in Sunday, February 3, at 11 a.m. ET/PT for Oprah's television interview with Ayana Mathis on "Super Soul Sunday."