James F. Brennan, Ph.D., served seven years as Provost of The Catholic University of America and was named Professor Emeritus in 2021. He has held academic administrative and faculty positions at several universities, continuing a program of empirical research focused on drug actions in hearing pathologies. His interest in psychology's history stems from his doctoral minor concentration, mainly through Kent State University's School of Library Sciences. He has continued this interest throughout his career through his teaching in the area as well as his authorship of this textbook, beginning in 1982 and continuing through eight editions.
Keith A. Houde, Ph.D., is Professor of Psychology at Ave Maria University in Florida. He previously worked as a clinical psychologist within a Veterans Affairs Medical Center in Maine, including service as a psychology training director for a predoctoral internship and postdoctoral fellowship program. With an academic background in psychology and theology, his interest in the history of psychology flows from a fascination with theories of human nature throughout the history of thought. He is passionate about teaching the history of psychology within the context of Western civilization and culture.