hat was once thought to be a minor leak from the pool of full-time and full-year jobs has become, if not a flood, at least a steady stream. That steady stream is currently termed contingent employment. Contingent workers-independent contractors and some part-time workers; migrant, seasonal, leased, and temporary workers; and certain homeworkers-have long been a fixture of the workplace (Morse, 1969). What is noteworthy is that short-term and tenuous arrangements between the employer and the worker have recently spread throughout North America as well as European countries with advanced industrial economies (Gustavsen, 1986;Prieto & Martin, 1990).The purpose of this chapter is to review the key research developments and critical issues in the study of contingent work, with special attention to the contingent workers of higher education. I also briefly address the metatheoretical construct of moral exclusion (Opotow, 1990). The lens of moral exclusion permits the viewer to focus on individuals and groups who are socially constructed as invisible, for example, the "invisible faculty" of higher education (Gappa & Leslie, 1993). A brief presentation of research on the contingent workers of the academy is provided along with goals for future research.