This book stems from the proceedings of the International Astronomical Union Colloquium 105. Every facet of the teaching of astronomy is explored by the contributors. Courses, training and teaching techniques form a large sector of the book. Practical information on computers, textbooks and astronomical equipment is given, linking in with chapters on student projects and teaching techniques. The philosophical aspects and the history of astronomy are described in a chapter entitled astronomy and culture. Popularisation of astronomy is discussed including the role of planetariums and the contribution of amateur astronomers. This comprehensive and well illustrated book offers a unique overview of international teaching technology and expertise that will serve as a lasting guide to astronomers involved in education.