ABSTRACT
This introduction presents an overview of the key concepts discussed in the third part of this book. The part identifies some key populations that have been the focus of attention in health-geography research. It is clear that health geographers have been at the vanguard of international research seeking to identify the barriers to, and facilitators of, positive health experiences among some of the most marginalized groups in society. There is an abundance of work concerned with inequalities in health between populations differentiated by their demographic characteristics, social identity or position in society. Further, issues relating to race and ethnicity have received a great deal of attention by geographers in other sub-disciplines, including social and cultural geography. Other marginalized groups that were not the focus of a chapter due to the lack of attention in health geography include prisoners, sex workers, itinerant groups, and people with substance-use disorders.
