Louise Glück isn’t exactly a recluse. But not far from it. Just don’t expect her to be the kind of US Poet Laureate who evangelizes for her art. “Ms. Glück is an inspired choice because she excels in doing the kind of thing that only lyric poetry can do, which is among the most intimate, nonpublic things words can do: mimic the peculiar music of thought itself. Her appointment sheds interesting light on a private art’s public existence.”