Jonathon Green, The Vulgar Tongue: Green's History of Slang (Oxford UP), "But what counts as slang? Where does it come from? And why does it exert such a powerful hold on the middle--class imagination? Jonathon Green sets out to answer these questions in the course of charting the development of slang as it is recorded in literature, from medieval beggar-books to World War II soldiers’ pornography". Sara Lodge, weeklystandard.