In the 1880s, fashionable Londoners left their elegant homes and clubs in Mayfair and Belgravia and crowded into omnibuses bound for midnight tours of the slums of East London. A new word burst into popular usage to describe these descents into the precincts of poverty to see how the poor lived: slumming. In this captivating book, Seth Koven paints a vivid portrait of the practitioners of slumming and their world: who they were, why they went, what...