This book provides a comprehensive overview of the management of brain and skull base tumors. It features detailed insight into the intrinsic molecular biology, anatomical foundation, radiological planning, surgical execution, and the novel therapeutics that guide today’s treatment regimens. The first section features concepts related to the epidemiology and pathological basis of disease processes, including relevant cellular and molecular biology. In the second section, integral anatomical foundations and principles are covered including microsurgical anatomy of the cerebrum, white matter tracts, ventricles, brainstem, skull base, advancements in radiological imaging, and cognitive examinations. Surgical approaches and how to execute these procedures are then subsequently discussed in the third part of the work.