Everyone wants a good life. Some try to create a good life by cultivating personal growth. They have a transformative self. This book explains how people form a transformative self, primarily in their evolving life stories, to help cultivate growth toward a life of happiness, love, and wisdom for the self and others. It introduces an innovative framework of values and personhood to strengthen and integrate three main areas of study: narrative identity, the good life, and personal growth. The result is a unique model of humane growth and human flourishing. Each chapter builds on that framework to explore topics central to the transformative self, such as how cultural beliefs of a good life shape our narrative identity; how narrative thinking shapes cultural and personal beliefs of a good life; how cultural master narratives shape our ideals for personal growth; how growth differs from gain, recovery, and other positive changes in the life story; how happiness, love, wisdom, and growth serve as superordinate goods in life; how the hard and soft margins of society thwart and facilitate personal growth; the dark side of growth; and the lengthy development of authenticity and self-actualizing. This book synthesizes scholarship from scientific research across several subfields of psychology to philosophy, literature, history, and cultural studies. It offers a creative and scientifically grounded framework for exploring three of life’s perennial questions: How do we make sense of our lives? What is a good life? and How do we create one?