Evolution Theory in the Social Sciences is the first collection of its kind to give a coherent historical account of the evolution of evolutionary thought and includes the most innovative and insightful works on the subject, from its very beginnings through to contemporary debates. The selections begin in the nineteenth century with Darwin and Malthus and then follows the variegated story of social evolutionary thought through to the beginning of the 21st Century, including key works by Marx, Veblen and Kropotkin as well as other less well known contributions.