The "Brain Tumors: An Interdisciplinary Approach" is the thirteenth volume of the "Interdisciplinary Cancer Research" series, publishes comprehensive volume on diagnosis and treatment of brain tumors. It starts with a general title on an interdisciplinary approach in brain tumors. Inherited genetics syndromes associated with central nervous system tumors as well as the impact of epigenetic methylation on gliomagenesis were explained. Then new approaches on precision medicine in brain tumors are discussed. After discussion on neurosurgical management of brain tumors, neuroimaging and radiosurgery of brain tumors are explained. Novel approaches to bypassing the blood-brain barrier for drug delivery to brain tumors are also discussed. After presentation of pediatric low-grade gliomas, treatment of glioblastoma is the subject of other chapters. The potential role of artificial intelligence in the treatment of glioblastoma is discussed in the last chapter. This is the main concept of Cancer Immunology Project (CIP), which is a part of Universal Scientific Education and Research Network (USERN). This interdisciplinary book will be of special value for neurosurgeons and oncologists who wish to extend their knowledge on brain tumors.