In this anthology of health literacy, drawing on New Social Literacy studies and contemporary debates on equity, we discuss health literacy within German regional and cultural contexts as well as in selected non-European regions, such as in Asia and South America. Topics include unique reviews on health literacy, new empirical results on different population groups, in-depth ethnographic insights into social contexts, interventions intended to improve health literacy, and innovative theoretical dialogs. The discussions within this book provide new ideas and intriguing new results, also shedding light on the explanatory power of the health literacy concept as well as its boundaries.