Part A: Introduction 1 The Scope of This Book 2 The Challenge to Treat Infiltrating Brain Tumors 3 The Impact of Lesionectomy on the Prognosis of Infiltrating Intracerebral Tumors 4 The Philosophy Behind Supramarginal Resection: Functionality Becomes the Limit Part B: The Theoretical Part 5 The Relevant Anatomy of the Functional Systems 6 What You Need to Know About Electricity 7 Transcranial Monitoring—Methods to Monitor CNS Functions: Principles 8 Direct Cortical and Subcortical Mapping 9 Checklist for Awake Procedure Part C: The Practical Part 10 Introduction to the Practical Part 11 Finding the Indication for Surgery 12 Setting up the Monitoring 13 The Surgery 14 Summary: Key Features from the Video 15 Epilogue