It is written with the smoldering anger of turn-of-the-century revolutionary socialism. There are no gray shadings in London's economic world. There is only the evil of capitalism and the saintly suffering of the poor. The rich had had their stories told in mass periodicals, and London felt it was time to let the ignored speak. He thus wrote the biographies of the people who have been exploited by imperialism and capitalism. This is the book that counters the Horatio Alger story. For every Alger, for every Rockefeller, there is a mass of sufferers whose plight enabled the speedy rise to wealth of a few. In its sociological and journalistic documentation of poverty is a call for direct action. Wealth blinds, and London makes us see. With this reprinting of London's incredibly important and readable book, Pluto Press and London remind us of how economic exploitation must always be fought, that we must always be educated in the lives of the unfortunate.