Anne Michaels is an award-winning Canadian poet and novelist whose long-awaited third novel, “Held,” has just made the Booker Prize longlist. The story spans 115 years and deals in themes familiar to her work: history, grief and the power of love. Anne tells Tom why it took nearly 15 years to write the novel, why she’s so interested in writing about war, and why she chooses to live an intensely private life.