When I read that book about the Mitford sisters, I bought a Kindle-volume of all Nancy Mitford´s novels. I have now finised the first two, "Highland Fling" and "Christmas Pudding", and enjoyed them a great deal. They are not the least bit serious or deep, just great romps with grown-ups (more or less) at play.
I look forward to reading more of Mitford, who is supposed to become better and better with every book. I´d recommend these two, particularly "Christmas Pudding", which has a bit more plot, to anyone who enjoys a good farce with hilarious situations, silly misunderstandings, and funny characters. Very well written it is, too. You´re in for a good giggle.
(Both photos are from Howard Castle, 2009)