Stephen Strack, Ph.D., is a staff psychologist at the VA Ambulatory Care Center in Los Angeles, CA, and holds faculty appointments at Alliant International University, Los Angeles, and Fuller Graduate School of Psychology in Pasadena, CA. He is the author or editor of nine books and test manuals, including Differentiating Normal and Abnormal Personality (2nd ed., 2006) and the Handbook of Personology and Psychopathology (2005). He has also published over 50 chapters and journal articles. An internationally-recognized expert in personality theory and assessment, he is on the editorial board of four scientific journals and is a Fellow of the APA and Society for Personality Assessment.