Book excerpt: Written by a team of leading experts in leadership studies, The Nature of Leadership provides compelling answers to the most vexing questions surrounding leadership: Is leadership measurable? Are there traits that reliably distinguish leaders from nonleaders? Does the situation matter? Are there differences in women′s and men′s leadership styles? Is ethical leadership effective leadership? Are elements of leadership culturally bounded whereas other elements are universal? Does vision really matter? Can leadership be developed? The new volume includes 16 chapters divided into five parts: Introduction, Leadership: Science, Nature, and Nurture; The Major Schools of Leadership; Special Topics in Leadership; and Conclusion. Topical coverage within these parts include research methods, leader and leadership development, evolutionary and biological perspectives of leadership, individual differences, situational and contingency theories, transformational, charismatic, and shared leadership, followership, gender, identity, culture, and ethics.