"As much about the life of the city as it is about a life lived, sometimes, in the city, John Banville's "quasi-memoir" is as layered, emotionally rich, witty, and unexpected as any of his novels. Born and bred in a small town a train ride away from Dublin, Banville saw the city as a place of enchantment when he was a child, a birthday treat, the place where his beloved, eccentric aunt lived. And though, when he came of age and took up residence there,...