The contributions to this book examine these importnat questions and fall into concerns conceptions of leadership. How has leadership been defined?What are the social and psychological processes that constitute leadership? Again it includes contributions dealing with factors that influence the effectiveness of leadership. Some conditions make leadership relatively unimportant, whereas others make good leadership essential. Some modes of relating to other people enhance the effectiveness of leaders, whereas others reduce the influence of leaders.It also examines a less popular but essentially topic in leadership scholarship, namely the effects of being in a position of leadership on the leader himself for herself.