The chapters in this volume survey the significant contributions to our knowledge of the mental health problems of older adults, their clinical assessment, and the empirical support for our clinical interventions. In 1900 the average life expectancy in the USA was 49 years. There was relatively little need at that time for a psychology of aging, much less a clinical psychology of aging. That situation has dramatically changed over 20th century and will continue to do so for many years. In 2001, adults 65 years of age and older comprise approximately 12.7 percent of the US population. With increasing age come increased risks of physical health problems and the field of clinical geropsychology continues to evolve as more researchers and clinicians begin to address the mental health needs of our increasing older adult population. "Clinical Geropsychology" examines the emerging field of clinical psychology beginning with a review of this area of research, offering an examination of issues that range from analyzing physiological and cognitive aspects to cognitive changes and specific neurological disorders common among older adults. Specific topics covered include sexuality, bereavement, anxiety, substance abuse, and schizophrenia