Book excerpt: "As school systems search for ways to develop and retain effective leaders, a new vision for leadership assessment becomes increasingly vital. This revised edition... provides the information and tools necessary to successfully evaluate all types of educational leaders and improve both individual and organizational performance. Incorporating the 10 Dimensions of Leadership, this field-tested resource is based on research, theory, and best practices in leadership, organizational effectiveness, and personnel evaluation. The author, a national expert on educational leadership and accountability, focuses on three critical concepts of leadership: the dramatic impact of leadership on student achievement, equity, and staff morale; the role of both personal predispositions and acquired knowledge skills on effectiveness; and how evaluation can be used to improve performance instead of merely rendering an assessment...This updated edition includes new features such as: sample hallmarks of performance excellence; practical insights into the distinction between evaluating and assessing leaders; a new leadership assessment and coaching tool for providing confidential feedback to senior leaders; examples of real-world applications. By implementing this multidimensional leadership assessment system, school districts can improve teaching, learning, and leadership at every level!"--Publisher's website.