This book presents a thorough and critical review of current knowledge on the role of immunology in major psychiatric disorders and its potential applications. The opening chapters offer general information on the immune influence of the brain to provide readers with a better understanding of the end of immune privilege. The book then examines possible underlying mechanisms leading to psychiatric disorders, from early infections to pro-inflammatory markers, stress, and immune genetic background, linking etiology and psychiatry. The third section describes each disorder (ie autism, schizophrenia, bipolar disorder, depression¿) with an overview of underlying immune dysfunctions. Lastly, the authors discuss the innovative immune- therapies that may result