Advances in Brain Imaging, which is part of American Psychiatric Publishing's "Review of Psychiatry" series, provides a brief overview of several functional and structural imaging techniques that have been applied to the study of psychiatric disorders. Although a variety of methodologies are discussed in each of the book's five chapters, the greatest attention is paid to functional magnetic resonance imaging (fMRI) and positron-emission tomography (PET). The primary disease entities discussed are schizophrenia and depression among adults and mood disorders among adolescents and children. According to the book's editor, John M. Morihisa, the unifying principle of the book is that modern brain imaging techniques can reveal pathophysiologic commonalities that underlie seemingly disparate psychiatric disorders.