Michael Domjan is Professor of Psychology at the University of Texas at Austin, where he has taught learning for five decades. His book, The Principles of Learning and Behavior (Cengage), is now in its 7th edition. Dr. Domjan is recipient of the D.O. Hebb Distinguished Scientific Contributions Award from the Society for Behavioral Neuroscience and Comparative Psychology, and his research was recently celebrated by a special issue of the journal Learning & Behavior (2022, volume 50, number 3). Andrew R. Delamater is Professor of Psychology and Neuroscience at Brooklyn College and the Graduate Center of the City University of New York, where he has taught various courses in learning and behavior theory and in the neurobiology of associative learning since 1994. He has served the discipline in a variety of ways: as president of the Pavlovian Society (2016) and the Eastern Psychological Association (2012), as a regular member on NIH study sections, as a member on editorial boards for a variety of journals, and currently as editor for the Journal of Experimental Psychology: Animal Learning & Cognition.