The Instructional Design Knowledge Theory, Research and Practice provides ID professionals and students at all levels with a comprehensive exploration of the theories and research that serve as a foundation for current and emerging ID practice.
This book includes an overview of many instructional design theories. It is written with a business focus, which made the book very dry and difficult to get through. As an educator, I think the benefit to me was to put a label and a schema on what I do in the classroom for identification and reflection purposes. This was required reading for a graduate class, and I don't know that I'd recommend it to educators so much as project managers looking to affect change within their organizations.
Essential to understanding the growth and development of the field. This text provides information on the educational research background that informs the ideology and practice of the field of ID.