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. In this video, Ayana shares those top lessons -- which she says made her grow as a writer -- with Oprah. Oprah's interview with Ayana Mathis airs on 'Super Soul Sunday' on Feb. 3 at 11 a.m. ET on OWN.
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