How can application of a positive lens to understanding social change and organizations enrich and elaborate theory and practice? This is the core question that inspired this book. It is a question that brought together a diverse and talented group of researchers interested in change and organizations in different problem domains (sustainability, healthcare, and poverty alleviation). The contributors to this book bring different theoretical lenses to the question of social change and organizations. Some are anchored in more macro accounts of how and why social change processes occur, while others approach the question from a more psychological or social psychological perspective. Many of the chapters in the book travel across levels of analyses, making their accounts of social change good examples of multi-level theorizing. Some scholars are practiced and immersed in thinking about organizational phenomena through a positive lens; for others it was a total adventure in trying on a new set of glasses. However, connecting all contributing authors was an excitement and willingness to explore new insights and new angles on how to explain and cultivate social change within or across organizations. This edited volume will be of interest to an international community who seek to understand how organizations and people can generate positive outcomes for society. Students and researchers in organizational behavior, management, positive psychology, leadership and corporate responsibility will find this book of interest.