Election studies, by both commercial and academic researchers, comprise one of the great continuities in American social research. They have contributed heavily to our knowledge about the psychology of voting, the social and economic structure of the country, the American political process, and the methodology of social research. The author of this round-up has long been recognized in the profession as one who combines the virtues of the journalist and the researcher to a high degree. He was for many years associated with Elmo Roper, and now heads his own firm of Louis Harris and Associates, New York.