The rising prevalence of dementia in the population continues to pose a serious public health challenge in both the developed and the developing world. Previous editions of "Dementia" have become acknowledged as a key 'gold standard' work in this field, and have had a genuinely international approach. The third edition has been fully revised and updated to reflect the most recent advances in the rapidly developing field of dementia research, adding further important detail to this already authoritative and detailed text. New material on mild cognitive impairment has been included, and the latest developments in areas such as service development and carer research are also covered. All the chapters have been revised to include the most up-to-date research in their field. This is an essential work of reference for specialists in old age psychiatry, neurology, and health care of the elderly. It should also be a useful resource for others working with patients with dementia, including general practitioners, nurses, psychologists, and other allied health professionals.