This chapter summarizes social perspectives of literacy learning commonly used in family literacy programs. Specifically, the chapter focuses on social-constructivist, sociocognitive, and sociocultural views of literacy learning. Within sociocultural theories, three perspectives are explored in relation to families and family practices: literacy as a social practice, multiliteracies and critical literacy. Furthermore, the commonly used ecological systems theory, as applied to families, is incorporated. Emergent literacy theory is defined and family literacy practices are explored through the lens of social perspectives.