BRETT N. STEENBARGER, PHD, is Clinical Associate Professor of Psychiatry and Behavioral Sciences at SUNY Upstate Medical University in Syracuse, New York, and an active trader of the equity index markets. He has published over fifty peer-reviewed journal articles and book chapters on topics related to brief therapy, and is the author of The Psychology of Trading, also published by Wiley. As Director of Trader Development for Kingstree Trading, LLC, in Chicago, Dr. Steenbarger has mentored numerous professional traders and coordinated the training of new traders.