Book excerpt: Presents the evidence-base for links between personality traits, psychological functioning, personality disorder and violence - with a focus on assessment and treatment approaches that will help clinicians to assess risk in this client group. An evidence-based examination of those personality traits and types of psychological functioning that may contribute to personality disorder and violence- and the links that can be made between the two Each chapter tackles an area of personality or psychological functioning and includes a developmental perspective, discussion of how to gauge risk, and an outline of effective treatments Traits covered include impulsivity, aggressiveness, narcissism and the ‘Big Five’ - neuroticism, extraversion, openness, agreeableness and conscientiousness New for the prestigious Wiley Series in Forensic Clinical Psychology, a market leader with more than 20,000 books in print