Dean Williams, Senior Scientist Emeritus at the Schiefelbusch Institute for Life Span Studies at the University of Kansas, received his Ph.D. from the University of Florida in 1989. His work is a model of bi-directional translational research in which his parallel animal and human studies have contributed to the design of treatment programs for clinical populations as well as to the analysis of basic principles of behavior. For more than 25 years, Dr. Williams’ research has been continuously funded by the NIH for his innovative research in stimulus control, behavioral pharmacology, schedule change-over effects, and issues of broad interest in the behavioral, social, and biological sciences. His creative synthesis and integrative approach to research have built connections between behavior analysis and a number of scientific disciplines. Through his publications in a wide array of leading journals and numerous conference presentations, Dr. Williams has made his work visible to a broad community and served as an effective ambassador for behavior analysis.