This book captures the essence of transformational leadership in a way that few do. I have studied leadership, trained and mentored leaders, and applied the principles and practices in my own life as a co-founder of a successful life sciences company. Quinn has synthesized his many years of experience in the classroom and in the board room, not to mention in his family life, and delivered a powerful set of ideas, models, and activities for anyone who wants to reflect on their own leadership and be involved in developing the leadership of others. I particularly appreciate his comparision of the "Normal State of Leadership" and the "Fundamental State of Leadership" (which I call best self leadership). In some ways what he writes is not "new" but the clarity with which he presents it makes it so easy to recognize and as a result to organize my own thinking. His eight practices that lead to and/or are expressions of the Fundamental State (Reflective action, Authentic engagement, Appreciative inquiry, Grounded vision, Adaptive confidence, Detached interdependence, Responsible freedom, Tough love) are snapshots into much deeper areas of leadership with many ways to understand and express one's best self as a leader. All in all, I highly recommend this book. It is especially useful for experienced leaders reflecting on and wanting to further their leadership practices and for those young leaders looking for a roadmap to their own development as leaders.