The aim of this study is to present the economic sociology of Alfred Marshall (1842-1924). Three topics are discussed: 1. Marshall's ideas of how preferences are generated, 2. the theory of action, and 3. the introduction of a fourth factor of production, organization. It is argued that Marshall's approach encourages a closer connection between sociologists interested in economic phenomena and economists. This conclusion is strengthened because of the resemblance of Marshall's analysis to those offered by Max Weber and Thorstein Veblen.