Book excerpt: This book provides a comprehensive summary of the cutting edge scientific evidence regarding the role of immune system in the pathogenesis and treatment of schizophrenia and related psychotic disorders. It illustrates the role of inflammation and immunity in schizophrenia drawing on both basic science and clinical research. The chapters provide up-to-date summaries of immunological risk factors for schizophrenia and related psychotic disorders, and underlying mechanisms as informed by neuroimaging, genetic, clinical and animal experimental studies. In addition, the book will illuminate the scope for immunological treatment for schizophrenia.