James W. Pennebaker is the Regents Centennial Professor of Liberal Arts and the Departmental Chair in the Psychology Department at the University of Texas at Austin, where he received his Ph.D. in 1977. He has been on the faculty at the University of Virginia, Southern Methodist University, and, since 1997, The University of Texas. He and his students are exploring the links between traumatic experiences, expressive writing, natural language use, and physical and mental health. His studies find that physical health and work performance can improve by simple writing and/or talking exercises. His most recent research focuses on the nature of language and emotion in the real world. The words people use serve as powerful reflections of their personality and social worlds. Author or editor of 8 books and over 200 articles, Pennebaker has received numerous awards and honors.