The chapter includes a discussion of European and Polish academic literature on the sociology of return migration to the mid-1970s and studies on return migration (in a number of disciplines) from that time to the present. The author discusses the pros and cons of several mid-range theories in various disciplines (sociology, economics, psychology, geography, and anthropology). Having determined the real constraints of such theories the author turns to grand theories and provides his own theoretical framework based on an original synthesis of Margaret Archer’s (Making our Way through the World: Human Reflexivity and Social Mobility, Leiden: Cambridge University Press, 2007) social realism and Alfred Schütz’s (1945) phenomenology. Once the theoretical framework has been defined the author discusses his methodological procedure, research techniques, and tools.