This is worth buying if only for Garnette Cadogan’s moving, mournful, and yet hopeful essay on walking while black, especially in New York, “Black and Blue.” Full disclosure: I say this as a friend of Garnette’s who has moreover done some walking in New York with him. But trust me: that essay alone is worth the price of admission. And then as a bonus you get stories by David Mitchell, Alexander Hemon, Haruki Murakami — people like that.