The text is divided into seven chapters. The first considers the features of schizophrenia from early views of the disorder in the works of Bleuler and Kraepelin to clinical symptoms, including positive, negative, and disorganized symptoms to DSM-IV diagnosis. The second chapter reviews the literature on the development of schizophrenia, and the third addresses genetics. Dr. Green considers risk factors and the concept of risk versus onset of illness, reviews population studies, examines markers of abnormal development, explains microscopic studies of the brain and the concept of cell migration in the development of neural connections, and addresses family studies, twin studies, and adoption studies as well as molecular genetics.