Julia Warrener, PhD, is currently a Principal Lecturer at the University of Hertfordshire employed as the Professional/Academic lead for Social Work. Julia continues to teach social policy and social thery on the BSc & MSc Social Work programmes. She qualified as a social worker in 1993 and has worked extensively with adults with mental health problems since 1995. In this time she developed a particular interest in personality disorder. She is also a researcher and committed to service user involvement in research and practice. This book has evolved from qualitative research undertaken in the last 7 years which explored the experiences and perspectives of service users and mental health social workers on personality disorder.