This book is based on the premise that instructional supervision is an organizational behavior system that interacts with the teaching behavior system for the purpose of improving the quality of education for students. Supervision is viewed from historical and future perspectives and present supervisory practices are analyzed according to concepts, theories, and research findings. The author provides ideas regarding a variety of supervisory practices, procedures, methods, and approaches. Examples and case studies clarify and illustrate the material. Guidelines for the new supervisor, pointers for leadership, and practical directions for all supervisory functions and processes are included. (Author/WM)