Saul Kassin is Professor of Psychology at Williams College in Williamstown, Massachusetts. Born and raised in New York City, he graduated with a B.S. from Brooklyn College in 1974. He received his Ph.D. in personality and social psychology from the University of Connecticut in 1978. He then spent one year at the University of Kansas and two at Purdue University. He was awarded a prestigious U.S. Supreme Court Judicial Fellowship in Washington, DC, and then worked as a postdoctoral fellow in the Psychology and Law Program at Stanford University.

Kassin is coauthor of Social Psychology (now in its fifth edition). He also has authored or edited many other books and has written numerous articles on the topics of social and cognitive development, and on the psychology of jury decision making, eyewitness testimony, police interrogations and confessions, and other aspects of law. He has served on the editorial boards of several major journals. Away from work, Kassin has an insatiable appetite for sports, politics, rock music, travel, and ethnic food.