This book aims to contribute to the ongoing policy debates in education reform and the creation of a new knowledge base that can serve all endeavours at different levels for teaching effectiveness and teacher development in different parts of the world. The target audiences are teacher educators, educators, graduate students, researchers, policy makers and those interested to reform education and teacher education for the new century. This volume includes 19 chapters grouped into three sections: research and analysis of teaching effectiveness and teacher development; the teacher as a professional in a changing context, and innovations and trends in teacher development. The authors of these chapters are scholars and researchers from different parts of the world. They present a range of perspectives, approaches, and research findings that are crucial to our pursuit of a knowledge base for effective teaching and teacher development in the new millennium.