By Its Cover is a series of posts wherein I read a book based solely on my love of the cover. No reading the jacket, no checking reviews! Ben Ziskind, former child prodigy, recently divorced and feeling very sorry for himself is at a cocktail party in a museum that his twin sister has all but dragged him to. When he spies a painting of an old man hovering above a city which he recognizes from the wall of his childhood home, he steals it. Just takes it off the wall and waltzes out the door with a million dollar Chagall.…