This issue of Neurosurgery Clinics, guest edited by Dr. R. Mark Richardson and Dr. Vasileios Kokkinos, will focus on Epilepsy Surgery: The Network Approach. This issue is one of four selected each year by our series consulting editors, Dr. Russell R. Lonser and Dr. Daniel K. Resnick. Topics discussed in this issue will include: History of the network approach in epilepsy surgery, Networks in temporal lobe epilepsy, Networks in frontal lobe epilepsy, Networks in parietal and occipital lobe epilepsy, Structures facilitating epileptogenic network formation, Extracranial interictal and ictal EEG in sEEG planning, Ictal semiology as a tool for sEEG planning, The significance of MRI lesions in sEEG planning, Functional networks in epilepsy presurgical evaluation, Automation advances in sEEG planning, Interpretation of the intracranial sEEG signal, Electrical cortical stimulation, Epileptogenic index, Modeling the epileptogenic network, Machine learning in epilepsy surgery evaluations, Neuromodulation of epilepsy networks, and Decision-making in epilepsy surgery.