While there are now five separate recognized schizophrenic disorders, they remain difficult to diagnose and still harder to treat. This volume reviews the most important work published in the last year and provides expert commentary and analysis from two of the leading authorities in the field. The editors review the latest advances in our understanding of the biochemical basis of the disease, its detection and diagnosis, and its relationship to other co-existent mental illness. They provide extensive coverage of psychopharmacological treatment, commentary on reports of recent findings and on new treatment regimes, and discussions of psychosocial therapies.