Photo-Illustration: Vulture Divorce writing may be the toughest thing a memoirist can do other than covering a war,” writes Mary Karr in The Art of Memoir. Yet the divorce memoir — and its shy cousin, the autofictional divorce novel — has experienced a resurgence over the past couple of years with works that range from poetic to empowering to startlingly bitter about the whole institution of marriage. Here, a taxonomy of upcoming and recently published divorce books, mostly from the perspective