This endoscopic sinus surgery course is specifically designed for otolaryngologists, neurosurgeons, ophthalmologists, otolaryngology residents, and/or rhinology fellows, wishing to improve their sinonasal endoscopic surgical skills, through a better understanding of the complex three dimentional endoscopic anatomy of the sinonasal and skull base area. This course focuses primarily on sinonasal, orbital, and skull base ANATOMY. Therefore, medical therapy of CRS, and other inflammatory or neoplastic diseases, will not be the primary focus of this course, but will be covered briefly in a few lectures. Clinical applications for all of the surgical techniques and approaches discussed will be reviewed, utilizing illustrative videos within all presentations. Experienced rhinology and endoscopic skull base faculty from throughout the world will share simple to use, consistent, and reliable endoscopic anatomical landmarks, which are time-tested and used in their own day to day practice, for even the most complex cases, without the need or dependence on intraoperative computer navigation. Unlike other similar weekend courses currently available, this course provides significant lab time at a reasonable cost. Twelve hours of hands-on lab sessions, utilizing fresh specimens, assures that there is ample time for the participant to practice all of the surgical techniques discussed, under direct faculty supervision. During the lab sessions there will be break-out case discussions covering all the topics discussed in the lectures. Live prosections by the faculty will be provided intermittently throughout the three days. There is significant interaction with the faculty. This is a great "refresher" course for any surgeon who currently performs anywhere from the most basic to the most advanced endoscopic sinonasal surgery. This course includes access to CANES LAB,  state of the art cadaver dissection lab at the University of Miami in Florida, only a couple miles from the Miami International Airport .