The global economy—the flattened world—demands a new type of leadership: collective and collaborative, where the solutions and vision are co-created by the team. Yet the practical application of collective leadership remains a mystery to many practicing executives and managers. The Leaderful Fieldbook helps change agents—from managers and trainers to consultants and coaches—create the conditions for transitioning from conventional to more collaborative forms of practice. Everyone is capable of participating in leadership, and not just sequentially, but collectively and concurrently—that is, all together and at the same time. The Leaderful Fieldbook presents a fresh and successful approach to leadership development across organizations.