James W. Pennebaker is the Regents Centennial Professor of Liberal Arts and Professor of Psychology. He and his students are exploring natural language use, group dynamics, and personality in both laboratory and real world settings. His earlier work on expressive writing found that physical health and work performance can improve by simple writing and/or talking exercises. His cross-disciplinary research is related to linguistics, clinical and cognitive psychology, communications, medicine, and computer science. The author or editor of 12 books and over 300 articles, Pennebaker has received numerous research and teaching awards and honors.