This book is a knowledge-based text that covers the anatomy, neurophysiology, and neuropharmacology needed to carry out the necessary management and cerebrospinal protection during neuroanesthesia. Especially to make the subject of neuroanesthesia more approachable, we introduce surgical measures utilized in neurosurgery, cardiovascular surgery, neuromodulation, and related procedures. The main purpose of neuroanesthesia/neurocritical care is to deliver cerebrospinal protection in neurosurgical and cardiovascular surgeries. How should we select the best anesthetic management to prevent neurological complications for patients who, for instance, undergo different types of surgery for subarachnoid hemorrhage, stroke, head trauma, carotid endarterectomy, or cardiovascular surgery under cardiopulmonary bypass? These pathological conditions include the risk of