Dr. Jack Michael was a professor in the Psychology Department at Western Michigan University and obtained his Ph.D. in 1955 at UCLA. During his first teaching position at Kansas University, he was influenced by reading B. F. Skinner's Science and Human Behavior. As a result of the influence of rehabilitation psychologist Lee Meyerson at the University of Houston he began to apply behavioral concepts in developmental and physical disabilities, and in mental illness. His interest in college teaching technology resulted from his association with Fred Keller at Arizona State University. He was at WMU for over 35 years, where he taught basic behavior analysis, behavioral approaches to motivation, verbal behavior, and college teaching. Michael received awards for Distinguished Service to Behavior Analysis (Society for the Advancement of Behavior Analysis), Distinguished Teaching and Distinguished Faculty Scholar (Western Michigan University); Distinguished Teaching (American Psychological Foundation), and the Don Hake Award (Division 25 of the American Psychological Association). In publications and presentations he worked to define, clarify, and analyze basic and applied behavioral phenomena. Concepts and Principles of Behavior Analysis presents a cross section of his work on many issues and provides a strong base for further study of behavior analysis.