Personality disorders are categorised into three ‘clusters’, each containing several specific disorders with common characteristics that differentiate them from those contained in the other clusters. Schema therapy was developed primarily to manage and treat ‘cluster B’ personality disorders, especially borderline personality disorder, and it has a robust evidence base in this area. Research studies have shown that schema therapy is also an effective treatment for clients with ‘cluster C’ personality disorders – dependent personality disorder, avoidant personality disorder and obsessive-compulsive personality disorder – but only if a number of important adaptations and adjustments to the treatment protocol are made. Written by well-known experts in the field, this is the first book to explore the theory and practice of using schema therapy to treat individuals with ‘cluster C’ personality disorders. Part of the Schema Therapy Approaches and Resources series, following the success of Chairwork, Imagery Rescripting and Schema Therapy: A Phase-Oriented Approach.