This research brief offers a profile of full-time college and university faculty who are 50 years of age or older, paying particular attention to their teaching activities and attitudes toward teaching. Data are presented on: the proportion of the professoriate that are senior faculty; changes in the age profile of college faculty between 1973 and 1989; composition by gender, race, and academic rank; career milestones such as tenure and publication activity; regular activities of senior faculty; differences in activities of faculty at two-year and four-year institutions; attitudes toward teaching and research; satisfaction with their work; and plans for the future. The profile suggests that today's faculty include large numbers of older faculty, most of whom have been at the same institution for 20 or more years. Most senior faculty are productive, contributing members of the academic professions, who are particularly active and interested in teaching undergraduates. Senior faculty are predominantly white and male and are likely to continue in their positions for another decade or two. Implications of the data are outlined. Contains 4 end notes, descriptions of 4 data sources, and 17 references. (JDD)