Book excerpt: This Second Edition of the Handbook addresses the evolving interdisciplinary health care context and the broader social work practice environment, as well as advances in the knowledge base which guides social work service delivery in health and aging. This includes recent enhancements in the theories of gerontology, innovations in clinical interventions, and major developments in the social policies that structure and finance health care and senior services. In addition, the policy reforms of the 2010 Patient Protection and Affordable Care Act set in motion a host of changes in the United States healthcare system with potentially profound implications for the programs and services which provide care to older adults and their families. In this volume, the most experienced and prominent gerontological health care scholars address a variety of populations that social workers serve, and the arenas in which they practice, followed by detailed recommendations of best practices for an array of physical and mental health conditions. The volume's unprecedented attention to diversity, health care trends, and implications for practice, research, policy make the publication a major event in the field of gerontological social work. This is a Must-Read for all social work social work educators, practitioners, and students interested in older adults and their families.