1 Mini-pterional: How "Mini" is too Mini and the Next Generation of Keyholes Part I: Approach Involving the Orbit 2 Endoscopic Supraorbital Approach 3 Endoscopic Transorbital Approach to the Anterior Clinoid 4 Endoscopic Transorbital Approach to the Cavernous Sinus and Meckel's Cave 5 Endoscopic Approach for Cerebrospinal Fluid Leak Repair Part II: Approach to the Sella/Parasellar 6 Endoscopic Endonasal Approach to the Sella Turcica 7 Endoscopic Transsphenoidal Approach/Medial Wall of the Cavernous Sinus 8 Endoscopic Approach to Meckel's Cave Part III: Approach to the Anterior Cranial Fossa/Circle of Willis 9 Endoscopic Endonasal Transcribriform/Transplanum Approach 10 Endoscopic Endonasal Transtuberculum Approach for Tuberculum Sellae Meningioma 11 Endoscopic Endonasal Approach for Optic Nerve Decompression and Tuberculum Sellae Meningioma 12 Transfrontal Sinus Keyhole Approach with Gull Wing Incision 13 Lateral Supraorbital Approach 14 The Mini-pterional Approach and Clinoidectomy Part IV: Approaches to the Third Ventricle 15 Endoscopic Endonasal Approach for Craniopharyngioma 16 Endoscopic Resection of Colloid Cyst 17 The "Mini"-Transcallosal Approach to the Third Ventricle Part V: Approaches to the Pineal Region 18 Endoscopic Paramedian Supracerebellar Infratentorial Approach 19 Keyhole for Combined Pineal Biopsy and Third Ventriculostomy Part VI: Approaches to Petrous Apex 20 Endoscopic Transpterygoid Translacerum Approach to the Petrous Apex 21 Endoscopic Endonasal Transpterygoid Approaches to the Cavernous Sinus 22 The "Mini"-Anterior Petrosectomy 23 The "Mini" Combined Transpetrosal Approach Part VII: Approaches to Infratemporal Fossa 24 Endoscopic Endonasal Approach to the Infratemporal Fossa Part VIII: Approaches to the Retrosigmoid/Lateral Suboccipital Region 25 Minimally Invasive Retrosigmoid Intradural Suprameatal Approach 26 Endoscopic-Assisted Retrosigmoid Transmeatal Approach for Vestibular Schwannoma 27 Endoscopic Microvascular Decompression Part IX: Approaches to the Clivus and Craniocervical Region 28 Endoscopic Far-Medial Approach 29 Endoscopic Transclival Approach 30 Endoscopic Approach to the Fourth Ventricle Part X: Supratentorial Approaches 31 Contralateral Transfalcine Approach 32 Tubular Transcortical Approaches 33 Minimally Invasive Selective Amygdalohippocampectomy for Epilepsy 34 Paramedian Supracerebellar Transtentorial Approach for Selective Amygdalohippocampectomy.