Book excerpt: Now in its Third Edition, this book clarifies the distinctions between the vast array of personality disorders and helps clinicians make accurate diagnoses. It has been thoroughly updated to incorporate the changes in the forthcoming DSM-5. Using the classification scheme he pioneered, Dr. Millon guides clinicians through the intricate maze of personality disorders, with special attention to changes in their conceptualization over the last decade. Extensive new research is included, as well as the incorporation of over 50 new illustrative and therapeutically detailed cases. This is every mental health professional's essential volume to fully understanding personality.