Brett Steenbarger is a well-known psychologist and trader, recognized for his contributions to the field of trading psychology. He has authored several books, including "The Psychology of Trading," which explores the mental aspects of trading and how emotions can impact decision-making. Steenbarger combines his expertise in psychology with practical trading strategies to help traders improve their performance. In addition to his writing, Steenbarger is a frequent speaker and educator, offering insights into the psychological challenges faced by traders. He has also worked as a coach for professional traders, helping them develop mental resilience and effective trading habits. His work emphasizes the importance of understanding one's own psychology in achieving trading success.