This book provides a comprehensive overview of the multidisciplinary management of meningiomas, followed by evaluation and management considerations along a spectrum of benign to more malignant behavior. It outlines the management of presumed Grade 1 tumors and how to identify features of tumors radiographically and clinically that may support a benign course rather than aggressive and vice versa. Following a stepwise progression from simple to complex, chapters introduce and tackle more aggressive meningiomas and tumor recurrence (of all Grades), with paradigms for evaluation and treatment. Tumor biology and genomics are fundamental and largely focused in the book. More recent findings which have directed personalized medicine and clinical trials are also addressed.