I began quite a while ago to resist declarations of literary greatness in the sense of singling out any one book as TGAN, or even making lists of the Great American Books. Partly because the supposed categories of excellence omitting all genre writing, and the awards and reading lists and canons routinely and unquestioningly favoring work by men in the eastern half of the United States, made no sense to me. But mostly because I didn’t and don’t think we have much idea of what’s enduringly excellent until it’s endured. Been around quite a long time. Five or six decades, to start with.