Book excerpt: The Wiley-Blackwell Handbook of Mood Disorders, 2/e reflects the important and fast-changing advancements that have occurred in theory and practice in unipolar and bipolar mood disorders. There is no other current reference that gathers all of these developments together in a single book Every chapter is updated to reflect the very latest developments in theory and practice in unipolar and bipolar mood disorders Includes additional chapters which cover marital and family therapy, medical disorders and depression, and cross-cultural issues Contributions are from the world's leading authorities, and include psychiatrists and clinical psychologists with experience in both research and in practice Focuses on innovations in science and clinical practice, and considers new pharmacological treatments as well as psychological therapies