Book excerpt: In this third edition of Intracranial Stereotactic Radiosurgery, Drs. Sheehan and Lunsford provide an updated assessment of the practice of stereotactic radiosurgery. Topics include benign and malignant tumors, cerebrovascular abnormalities, and functional disorders. Several new topics are now included and focus on immunotherapy, hypofractionation, and repeat radiosurgery. Each chapter contains key figures and tables to illustrate the critical concepts of the work. Contributors to the book represent many of the most prestigious stereotactic radiosurgery centers across the world. This book is comprised of 36 chapters and represents a comprehensive update to prior editions. It is intended to be a readable, credible, and accessible reference on stereotactic radiosurgery. Editors Jason Sheehan, MD, PhD, FACS, FAANS, is the Vice Chair and Harrison Distinguished Professor of Neurological Surgery at the University of Virginia (UVA). He also serves as the Neurosciences Service Line Director at UVA. Dr. Sheehan is the current chair of the American Association of Neurological Surgeons (AANS) and Congress of Neurological Surgeons (CNS) Section on Tumors. He serves as the Editor-In-Chief of the Journal of Neuro-Oncology. L. Dade Lunsford, MD, serves as the Lars Leksell Professor and Distinguished Professor at the Department of Neurological Surgery at the University of Pittsburgh. He is also director of the Center for Image-Guided Neurosurgery at the University of Pittsburgh Medical Center and an internationally recognized authority on stereotactic surgery, radiosurgery, and minimally invasive surgery. He has authored or coauthored more than 1,000 scientific reports and 16 books.