POINTS OF VIEW (284 pp.)W. Somerset MaughamDoubleday ($4.50).
What happens to very old writers when they stop writing? In the case of W. Somerset Maugham, now 85, he just goes right on writing. Over the past ten years he has regularly announced his retirement, and now he once more informs the world that his new book, Points of View, is "absolutely my last." A few critics will hope he means it; in longhair circles the old storyteller has almost never been ranked above a sound literary carpenter. Yet few professional writers can honestly say that they do not envy his easy style,...