William C. Diehl & Michael Grahame (Pennsylvania State University, USA) Moore 
Handbook of Distance Education [PDF ebook] 

The Handbook of Distance Education, 4th Edition provides a comprehensive compendium of research in all aspects of distance education. While the book deals with education that uses technology, the focus is on teaching and learning and how its management can be facilitated through technology. Key features include coverage of all aspects of distance education, including design, instruction, management, policy, and a section on different audiences. Chapter authors frame their topics in terms of empirical research and discuss the nature of current practice in terms of that research. Future research needs are discussed in relation to both confirmed practice and recent changes in the field.