This book is about leadership theory and research, exploring effective influence strategies. It reviews and evaluates leadership theories such as situational leadership, transformational leadership, s This book is about leadership in formal organizations. Its primary focus is on leadership effectiveness, with special attention on influence strategies that lead to superior performance. The book is not a practitioner?s manual of simple techniques and secret recipes that guarantee instant success. It reviews and evaluates theories on leadership, and helps the reader to understand the complexity of effective leadership. The book contains many references which enable readers to follow up with additional reading on topics of special interest.