Francesco Signorelli MD, MSc, is an Italian and French board certified neurosurgeon trained in Italy, UK, Canada, and France, full professor and chairman of the University Division of Neurosurgery of Bari, Italy. His surgical practice has canvassed the spectrum of neurosurgery together with his scientific activity, with over 3000 interventions in adults and children, more than 120 articles and book chapters, over 60 invited lectures, including visiting professorships in USA, Switzerland, Belgium, and Vietnam. A member of national and international neurosurgical associations, his current major interests are vascular neurosurgery, open and endoscopic skull base surgery, and brain tumors in eloquent areas.