Few things in this world have the power to make me clean my desk. One of them, it turns out, is Anne Carson’s new book-in-a-box, Nox. Before I even opened it, I felt an irresistible urge to spend twenty minutes purging my worktable of notes, napkins, magazines, forks, check stubs, unpaid bills, and fingernail clippings. The urge struck me, I think, for a couple of reasons. For one, Nox is unwieldy.