Book excerpt: Group Schema Therapy for Borderline Personality Disorder represents the first treatment manual for group schema therapy and is based on the only group ST model validated by published empirical evidence. Presents an original adaptation of schema therapy for use in a group setting Provides a detailed manual and patient materials in a user-friendly format Represents a cost-effective ST alternative with the potential to assist in the public health problem of making evidence-based BPD treatment widely available Includes 'guest' chapters from international ST experts Jeff Young, Arnoud Arntz, Hannie van Genderen, George Lockwood, Poul Perris, Neele Reiss, Heather Fretwell and Michiel van Vreeswijk