This book aims to continue inquiry into the evolving nature and all too frequent fragility of late life relationships and the grand challenge of social isolation. It do by documenting author’s current understanding of the complex and multidimensional nature of the interrelated issues of social relationships and health in late life, and the promising health and human service practices that have emerged to lessen the negative impacts of weakened relational ties for older adult health and well-being. The book explores from multiple disciplinary perspectives the characteristics and significance of a wide range of social relationships that, when taken together, can determine the extent to which older adults will be at risk of being socially isolated, disengaged, lonely, and otherwise at risk in late life. It considers the influence on older adult social health of trends in multigenerational family relations, friendships, grand parenting, love, intimate and sexual relationships, divorce and widowhood, and interactions with community and healthcare providers and other public entities. It highlights innovative and alternative forms of community and later life relationships that can serve to forestall or prevent altogether social isolation and loneliness. Given the significance placed on the quality of our social lives in preparing us for a satisfying old age, it explores as well a variety of strategies for bolstering older adult social health and community engagement. While one’s physical health status in late life may not be able to be dramatically altered for the better, it argues that one’s social health and the relationships that comprise one’s social life can. Whether you are an older adult yourself or a professional or family caregiver of an older adult, you have the capacity to shore up potential gaps in the integrity of your own or another person’s social world.