M.F. Cleveland-Innes & D.R. Garrison 
Introduction to Distance Education [EPUB ebook] 
Understanding Teaching and Learning in a New Era

An Introduction to Distance Education offers a comprehensive look at distance education today and outlines current theories, practices and goals. The goal of this book is to provide a detailed review of the influence of historical distance education theory and practice, and the current changes occurring in the field today. It outlines the practical skills and information that are essential to effective distance education design, delivery and navigation.