This full-color surgical atlas and guide shows the refinements in endoscopic procedures for treatment of sinus conditions. The authors offer step-by-step "how-to" instructions on surgical technique and expert advice on concerns such as preoperative evaluation, choice of instruments, postoperative care, and prevention and management of complications. This edition contains over 400 illustrations, including many new color images and CT scans. New chapters cover an anatomical approach to sinus surgery: a combined anterior-to-posterior and posterior-to-anterior approach; endoscopic endonasal frontal sinusotomy; and powered instruments. The authors have added highlight boxes alongside illustrations to emphasize key surgical points and pitfalls.