This series of guidebooks draws on the practical knowledge that the Center for Creative Leadership (CCL) has generated, since its inception in 1970, through its research and educational activity conducted in partnership with hundreds of thousands of managers and executives. Much of this knowledge is shared-in a way that is distinct from the typical university department, professional association, or consultancy. CCL is not simply a collection of individual experts, although the individual credentials of its staff are impressive; rather it is a community, with its members holding certain principles in common and working together to understand and generate practical responses to today's leadership and organizational challenges. The purpose of the series is to provide managers with specific advice on how to complete a developmental task or solve a leadership challenge. In doing that, the series carries out CCL's mission to advance the understanding, practice, and development of leadership for the benefit of society worldwide. Douglas Riddle is the Global Director of Coaching Services at the Center for Creative Leadership. He is responsible for the advancement of coaching research and practice, and manages over 400 professional leadership coaches around the world. Under his leadership, CCL coaching has expanded into work across Asia, Eastern Europe, and Africa. CCL coaches are located in twenty-six countries and speak as many languages. Doug frequently speaks and writes on leadership, coaching, and organizational change. He holds doctorates in psychology and theology, and is a licensed psychologist in California.