Faulkner had Yoknapatawpha County; Elizabeth Strout returns again and again to certain fictional parts of Maine. My favorite village is the world of Ezra Jack Keats's imagination. This world seems to be Brooklyn, or something like Brooklyn. You get a hill for sledding, a shadowy area for big kids, a large apartment complex, an alley, a mailbox. That's all you need. The main figure in Keats's world is Peter, a little boy who (famously) stores a snowball in his pocket; storing the snowball will mean "fun on another day." Peter has certain struggles: evading the big mean boys, writing and mailing a letter, learning to whistle, coping with his sister Suzy. Peter also has a compelling sidekick, Archie, whose main drama involves bonding with, then managing, an especially spirited cat. Additionally, there is the mysterious Amy, a friend of Peter's; Peter invites Amy to a party, and this taboo-busting gesture leads to a schoolyard scandal. ("Peter, what are you ...