This text includes 50 short chapters from the most prominent international scholars of leadership who provide students with invaluable overviews, insights, and perspectives on leadership in today's organizations. The book has a central organizing framework outlining the components of leadership (which is presented in the Introduction). It incorporates a new section on shared responsibility for leadership, new chapters on the external environment and on dysfunctional or unethical leadership behavior, a new section on inclusion, together with coverage of all the classic leadership theories, with updated chapters covering vision, mission, and structure that enhance the relevance of these theories in today's organizational context.