Guest Editors Rafael J. Tamargo and Judy Huang have focused on "Cranial Arteriovenous Malformations (AVMs) and Dural Arteriovenous Fistulas (DAVFs) in this issue of Neurosurgery Clinics of North America.  Articles in this issue include:  Arteriovenous Malformations: Epidemiology and Clinical Presentation; Dural Arteriovenous Fistulas: Epidemiology and Clinical Presentation; Historical Perspective of Treatments of Arteriovenous Malformations and Dural Arteriovenous Fistulas; Imaging of Arteriovenous Malformations and Dural Arteriovenous Fistulas; Classification Schemes for Arteriovenous Malformations; Classification Schemes for Dural Arteriovenous Fistulas; Acute Management of Ruptured Arteriovenous Malformations and Dural Arteriovenous Fistulas; Selection of Treatment Modalities or Observation of Arteriovenous Malformations; Selection of Treatment Modalities or Observation of Dural Arteriovenous Malformations; Surgical Treatment of Cranial Arteriovenous Malformations and Dural Arteriovenous Fistulas; Anesthesia Considerations and Intraoperative Monitoring During Surgery for Arteriovenous Malformations and Dural Arteriovenous Fistulas; Stereotactic Radiosurgery of Cranial Arteriovenous Malformations and Dural Arteriovenous Fistulas; Endovascular Treatment of Cranial Arteriovenous Malformations and Dural Arteriovenous Malformations; Occlusive Hyperemia Versus Normal Perfusion Pressure Breakthrough after Treatment of Cranial Arteriovenous Malformations; Vein of Galen Malformations: Epidemiology, Clinical Presentation, and Management; Carotid Cavernous Fistulas: Epidemiology, Clinical Presentation, and Management.