William J. Rothwell is professor in charge of workforce learning and performance in the Workforce Education and Development Program in the Department of Learning & Performance Systems, College of Education, The Pennsylvania State University. He is co-editor of Practicing Organization Development, and author of The Action Learning Guidebook, from Pfeiffer.
H.C. Kazanas is professor emeritus of education at the University of Illinois, Urbana-Champaign and now resides in Naples, Florida.
Rothwell and Kazanas are the co-authors of Mastering the Instructional Design Process, 3rd edition from Pfeiffer.