The authors, experts in the field of geriatric psychiatry and dementia, offer a clinical treatise on dementia that is good reading for any clinician dealing with the geriatric population. There are several chapters on cortical dementias, including epidemiology, genetics, and pathology. The topics of frontal lobe dementia (frontal lobe, thalamostriatal, and motor neuron), dementia due to Lewy Body disease, and prion dementias are well discussed. Subcortical dementias due to Parkinson's, progressive supranuclear palsy, and HIV infection are intelligently dealt with. Stroke-related, toxic, and brain injury—related cognitive difficulties are addressed as well.