The source provides a comprehensive overview of the evolution and current state of health literacy in the United States, emphasizing a paradigm shift from focusing solely on individual capacity to incorporating systemic and organizational responsibility. It explains how the Healthy People 2030 initiative formally introduced the dual concepts of personal health literacy and organizational health literacy to promote equity. The text details the pervasive negative impact of limited health literacy on clinical outcomes and the staggering economic burden it places on the healthcare system. Furthermore, it outlines the federal and organizational response, including the National Action Plan and the Ten Attributes of a Health-Literate Organization, while exploring key evidence-based interventions such as Plain Language and the Teach-Back method. Finally, the source addresses the growing importance of digital health literacy and the need for new research to evaluate the cost-effectiveness and scalability of interventions.