Brain cancer is one of the most devastating diagnoses a physician can deliver. Cancer of the nervous system can take many different forms. Treatment is specific to the type of malignancy, its location in the nervous system and, increasingly, its molecular characteristics. The challenges manifest further when management choices need to be made, and multidisciplinary approaches are required. Additional complexities arise in children, where the developing neurological system requires more sensitive treatment. unmasks the complexities to provide a straightforward guide to cancers of the nervous system. Following a general approach to diagnosis and treatment, the clinical aspects of specific cancer types in adults and children are explained in practical terms. A final section considers the effect of system cancer on the nervous system and the side effects of treatment. Clinical in approach, practical in execution, will help you diagnose and manage your patients more effectively. Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA The series provides clinical 'in the office' or 'at the bedside' guides to effective patient care for neurologists. The tone is practical, not academic, with authors offering guidance on what might be done and what should be avoided. The books are informed by evidence-based practice and feature: