"This updated and expanded second edition of this influential book has no competition. There is no competition because there are no other books like it on the market and also because of the breadth and importance of the topics that are covered by leading-edge researchers in the field....Would be an excellent centerpiece for graduate courses in personality psychology. It provides state-of-the-art reviews of theories, statistical methods, assessment methods, and research findings. The topics and the quality of the writing should make the book highly appealing to students in both personality and abnormal psychology."--PsycCRITIQUES This long-awaited, completely new update to a classic text offers a state-of-the-art overview of a rapidly growing field that seeks to integrate the study of normal and abnormal personality. Written by some of the most influential personologists of the 21st century, including Aaron Beck, C. Robert Cloninger, Robert McCrae, and Theodore Millon, chapters show how current theories, statistical methods, and assessment instruments can be used to understand the entire spectrum of personality functioning, from normal to disordered. With graduate students and professionals new to the field in mind, this book provides information about the central issues that are being addressed by researchers and clinicians in the realm of normal-abnormal personality today. In addition, it provides essential terminology, ideas, and methods that are unique to the field at large as well as basic tools needed to become a participant in normal-abnormal psychology. Divided into three parts, the book presents an overview of major theories, statistical methods, and measurement instruments, including: Seven influential models of personality and psychopathology Four statistical methods for use in taxonomy, diagnosis, similarities and differences between normal and abnormal personality, and genetic and environmental influences Problems and pitfalls in designing empirical studies in the realm of normal-abnormal personality Empirically-based introductions and reviews of five widely-used instruments for assessing normal-abnormal personality