In this revised edition, the authors synthesize their decades of experience in teacher education and supervision into a comprehensive guide to supporting teacher growth and student learning. Embedded in every page are the essential knowledge, skills, approaches, and methods that leaders need to drive instructional improvement. Official school leaders and classroom teachers striving to be the best will learn how to put the school's goals and priorities into practice by: Selecting the right structure for differentiating teacher professional learning to improve outcomes for students; Implementing the technical and procedural skills needed to support teacher learning while observing, assessing, and evaluating instruction; Identifying appropriate relational skills for communicating and working with teachers; Applying the best interpersonal approach to stretch each teacher based on their own developmental level; Making the most of teachable moments with immediate response skills; and Understanding how to support teachers' social-emotional wellness as an essential component of improving practice. In addition, each chapter provides detailed scenarios and case studies that illustrate exceptional leadership, and the Appendixes offer connections to dozens of promising practices. We are in a new era of teaching and learning, and a new kind of leader is needed to guide successful and extraordinary schools. This book gives preK-12 leaders the powerful tools they need to ensure that competent, caring, qualified professionals who want to improve teaching and learning are in every classroom.