Cognitive Analytic Therapy and Borderline Personality DisorderBorderline Personality Disorder patients are impulsive, unstable and destructive, hurting themselves and those around them, including those who seek to help them. This has resulted in a widespread reluctance to treat them and a pessimism about treatment. In the experience of the authors this pessimism is unjustified, because for many patients a relatively brief intervention can be effective in cost benefit terms as well as human terms. The