The identification of the cause of an epileptic seizure is a key element in the clinical management of all patients. In recent decades, advances in theory, neuroimaging, molecular genetics and molecular chemistry have revolutionized our ability to investigate and identify the underlying cause. The definitive and unrivalled textbook on the causes of epilepsy, this second edition is extensively revised and expanded. It provides concise descriptions of all the major genetic and acquired conditions that cause epilepsy in adults and children, and the provoking factors for epileptic seizures and of the causes of status epilepticus. A new section considers clinical approaches to diagnosing causes, to guide and assist clinicians in investigations. With 128 chapters written by leading figures from around the world, this comprehensive and authoritative resource is indispensable to senior and junior clinicians and trainees working in the field of epilepsy, including specialists in neurology, paediatrics, neurophysiology, psychiatry and neurosurgery.