Alzheimer's disease (AD) is a type of brain disorder that affects the memory and thinking abilities. It is a progressive condition that causes brain shrinkage and cell death. The major symptoms of Alzheimer's disease include memory problems, changes in personality and behavior, and mood swings. There is no specific cause for AD. A history of depression, hypertension and head injuries are some of the common risk factors associated with Alzheimer's disease. The diagnosis of AD is based on physical examination and neurological health assessment. The common diagnostic tests for AD include blood tests, brain imaging and PET scans. Treatment of AD includes medications to reduce the progression of cognitive decline. This book on Alzheimer's disease is a collective contribution of a renowned group of international experts. It strives to provide a fair idea about this medical condition and to help develop a better understanding of the latest advances within its clinical management.