Book excerpt: This book provides a concise yet comprehensive literature review on leadership. As well as offering critical insight into leadership research, the author addresses emerging paradigms and identifies new approaches. A vital tool for leadership students and scholars, the text will enable readers to demonstrate a critical awareness of current developments both in theory and practice of leadership and its importance in modern organizations. Both scholars and practitioners will find the engaging discussion in this book particularly useful as the author offers practical ideas for development and a much-needed unified theory on leadership.