Aaron Gwyn, Twitter, images of Cormac McCarthy's letter to his editor Albert Erskine about stylistic nuances of colons, commas, hyphens in his his first novel, The Orchard Keeper. (Gwyn describes these as stylistic quirks, which seems odd to me given the substantive arguments given for his choices.) Doesn't seem kosher to help myself to these images and post them here, but you can see what McCarthy had to say here