Lesley Berk MA (Clin Psych) is a psychologist with extensive experience in the clinical management of bipolar and other mood disorders. She has also been involved in psychosocial research in bipolar disorder and has contributed to scientific journals and presented at conferences in this area. Michael Berk MBBCh, MMed (Psych), FF(Psych), FRANZCP, PhD is Professor of Psychiatry at Barwon Health and The Geelong Clinic at The University of Melbourne, and heads the Bipolar program at Orygen Research Centre. He is President of the International Society of Bipolar Disorders. David Castle MB ChB, MSc., MD, DLSHTM, MRCPsych, FRANZCP is Professor of Psychiatry, St Vincent's Health and The University of Melbourne. He has published widely in scientific journals and co-authored 13 books. Sue Lauder MA (Clin Psych) is a psychologist with a nursing background and has worked in private practice and in a variety of clinical research settings as well as teaching.