I’ve never had writer’s block, but ever since my debut novel Oil and Marble: A Novel of Leonardo and Michelangelo has come out (and become a bestseller and received great reviews), a voice in my head has grown louder: “What if that is the best book you ever write? What if the next one sucks? What if readers are disappointed?” I have no choice but to ignore that voice and keep writing, but the voice still haunts me.