The Epilepsy Society Brain and Tissue Bank is a recently established tissue bank at the Institute of Neurology, which has ethical approval and is supported by the Epilepsy Society. It is located within UCL Institute of Neurology in the Department of Neuropathology and is governed by a committee including members of the Department of Clinical and Experimental Epilepsy, the Epilepsy Society as well as SUDEP Action. The collection comprises consented tissue samples from patients who have undergone epilepsy surgery, mainly at the National Hospital for Neurology and Neurosurgery. In addition the tissue bank archives whole brain samples from patients with epilepsy and particularly epilepsy-related deaths, such as sudden and unexpected death in epilepsy (SUDEP). We have a donor registry for people who have epilepsy, seizures or who are healthy, without seizures, who wish to donate brain tissue following death.