Introduction: terminology for the continuum from normal cognitive aging to dementia -- Role of neuropsychological measurement in MCI and dementia assessment -- Normal cognitive aging -- Mild cognitive impairment -- Alzheimer's disease -- Vascular dementia -- Dementia with lewy bodies / with guest author Tanis J. Ferman -- Frontotemporal dementias -- Atypical dementias / with David P. Salmon -- Interventions for the behavioral disturbances of dementia