Demography, or the study of population, has been an area of graduate study within the University of Maryland’s Department of Sociology for many years. The focus has been on social demography, that is, the study of social factors that affect population dynamics-though also with a grounding in the traditional components of demography: fertility, migration and mortality. We study why people have the number of children they have, migrate when they do, and die when they do-and the consequences of such behaviors. We also study how these demographic processes relate to family dynamics (such as marital formation and dissolution) and labor force activity. Group differences in population outcomes-for example, differences by gender, ethnicity, and race-are important considerations in this field of study. Our perspective is both national (United States) and inter national, including developing countries.