Depressive disorders have profound social and economic consequences, owing to the suffering and disability they cause. They often occur together with somatic illness which worsens the prognosis of both. Prevention, detection and optimal treatment of these disorders are therefore of great clinical and economic importance. This edition of the first title in the acclaimed Evidence & Experience series from the World Psychiatric Association has been fully revised and features a new section on depression in primary care - the main channel for the management of these disorders in countries around t