Tracy B. Henley is Professor and Head of Psychology at Texas A & M University-Commerce, USA. He works primarily on historical matters, social cognition, and psycholinguistics. He has several previous books related to the history of psychology.

Matt J. Rossano is Professor of Psychology at Southeastern Louisiana University, USA, where he studies the evolution of ritual, religion, and cooperation. His books include: Supernatural Selection: How Religion Evolved and Mortal Rituals.

Edward P. Kardas is Distinguished Professor of Psychology and Director of the Honors College at Southern Arkansas University, USA, where he has taught since 1980. He is the author of books on the Internet, research methods, and the history of psychology.