Dr. Diehl also serves as associate editor for The American Journal of Distance Education and is an expert reviewer for other academic journals. He is the director of The American Center for the Study of Distance Education and the founder of the International Museum of Distance Education and Technology.
Dr. Diehl is author and co-author of numerous articles in academic journals and proceedings at academic conferences. A consultant in the corporate, higher education, and government sectors, his professional experience also includes work as K-12 teacher, technologist, web designer and developer, instructional designer, and multimedia consultant.
He is co-editor of the 4th Edition of the Handbook of Distance Education (January 2019). His book chapters include the Handbook of Distance Education (2nd, 3rd, 4th editions) and The Handbook of mLearning.
Dr. Diehl earned his Ph.D. in Adult Education with a focus in Distance Education from The Pennsylvania State University. His undergraduate degree focused on Elementary Education.