steven naifeh and gregory white smith have penned a biography about events and then go. also tonight, marie lu on her book "legend." glad you have joined us. >> every community has a martin luther king boulevard. it's the cornerstone we all know. it's not just a street or boulevard, but a place where walmart stands together with your community to make every >> nationwide insurance supports tavis smiley. with every question and every answer, nationwide insurance is proud to join tavis in working to improve financial literacy and remove obstacles to economiernvtonti at a time. nationwide is on your side. >> and by contributions to your pbs station from viewers like you. thank you. [captioning made possible by kcet public television] tavis: steven naifeh and gregory white smith are pulitzer prize- winning authors. their latest is easily one of the most talked-about books of the year. a new biography of a vincent van gogh. it is titled "van gogh: the life." good to have you here. >> thank you very much. tavis: let me start by asking what it is about a vincent van gogh that m