Alzheimer's disease (AD) is a progressive condition that causes a continuous decline in thinking, behavioral and social skills. This impairs an individual's ability to function independently. AD mostly affects people over the age of 45 years, although 4-5% of the cases are early-onset Alzheimer's. The cause of Alzheimer's disease is not known. Some of the risk factors for Alzheimer's include a history of depression, hypertension and head injuries. Neuropsychological tests like the mini-mental state examination are used to evaluate the cognitive impairments associated with the disease and diagnose it. The presence of neurological and neuropsychological features of the disease and the absence of alternate conditions is supportive of a diagnosis of AD. This book is a valuable compilation of topics, ranging from the basic to the most complex aspects of Alzheimer's disease. It aims to shed light on some of the unexplored aspects of this disease. The extensive content of this book provides the readers with a thorough understanding of the condition.