AACNS is held once every four years and is the official congress of the society. AACNS is one of the region’s most eminent medical congresses dedicated to neurological surgery. Hosted by AASNS and organized by AACNS 2015 Organizing Committee and Korean Neurosurgical Society (KNS), the four-day congress aims to provide neurological surgeons an excellent platform for the exchange of clinical and scientific knowledge on the latest developments and emerging challenges of neurological surgery and allied sciences. AACNS 2015 will be held in conjunction with the 13th Asian-Oceanian Skull Base Congress, and KNS Meeting. Therefore, this congress will feature an exciting line-up of expert speakers including top practitioners, opinion leaders and researchers mostly from Asian-Australasian sector as well as from other parts of the world.