The British class system is a bewilderingly arcane construct, and snobbery is a sort of running commentary on it. D. J. Taylor is a novelist and critic who has made himself something of a specialist interpreter of this whole issue. He writes with deadpan humor, as if he can’t really believe all the social and literary mischief he’s stumbled upon but passes it on just the same. (Full disclosure: Bright Young People, a book he published in 2007 laying out for inspection upper-class antics between the world wars, has a section about my father entitled “Mr. Pryce-Jones’s Connections,” which could be incorporated word for word in this new book.) “Am I a snob?” Taylor asks in his opening pages here, quickly picking up on it, “I really hope not.” Giving reassurance that he is “certainly not of what used to be called a ‘good’ fam ...