Edited by Peter J. Kivisto, this acclaimed collection of accessible primary source readings enables students to experience "firsthand" a wide range of perspectives that are shaping current sociological theory. Now in its sixth edition, covers both classical theory (the roots) and contemporary theory (the branches) and shows how they are linked. Part One features work from such well-known classical theorists as Marx, Durkheim, Weber, and Simmel. It also presents selections by theorists outside of the discipline and from writers who are often overlooked in competing collections, including W. E. B. Du Bois, Charlotte Perkins Gilman, and Harriet Martineau. Part Two offers readings that illustrate major contemporary theoretical approaches, ending with a section on cutting-edge directions in theoretical discourse.