Based on extensive primary research conducted over more than fifteen years, this book documents the differential contribution of HP's successive CEOs in sustaining the company's integral process of becoming. It uses a comprehensive strategic leadership framework to examine and explain the role of the CEO: (1) defining and executing the key tasks of strategic leadership, and (2) developing four key elements of the company's strategic leadership capability. The study of the strategic leadership of HP's successive CEOs revealed the paradox of corporate becoming, the existential situation facing successive CEOs (that justifies the book's empathic approach), and the importance of the CEO's ability to harness the company's past while also driving its future. Building on these insights, the book shows how the frameworks used to conceptualize the tasks of strategic leadership and the development of strategic leadership capability can serve as steps toward a dynamic theory of strategic leadership that animates an evolutionary framework of corporate becoming. This framework will be helpful for further theory development about strategic leadership and also offers practical tools for founders of new companies and CEOs and boards of directors of existing companies who intend to create, run, or oversee companies built for continued relevance, longevity, and greatness.