Endoscopy has simplified medical diagnosis. Surgeons from varied domains have become extremely interested in endoscopy due to its low complication rates, high analytic yields and the opportunity to carry out a large diversity of therapeutic techniques. In the past few decades, the variety of surgical endoscopic methods has developed with many new techniques for both analysis and management, and these developments are presented in this book. It discusses the applications of endoscopic surgery in various areas such as the skull base, paranasal sinuses, the central nervous system and ophthalmology. Contributing to the expansion of endoscopic surgery around the world, this is a contemporary, informational, and interesting book.