“The moment when I can work no more, when the novel or collection of short stories or book-length essay is as done as it’ll ever be, I go looking for works of art that match it tonally. I listen to music with an acquisitive ear. I watch pieces of movies whose titles intrigue me. Most of all, I scan through dozens of websites that collect images by contemporary artists. And then I try to solidify the relationship by using those works as my cover art.” The New Yorker’s Ben Greenman on choosing the cover art for his books.