Sleep apnoea, the temporary cessation of breathing during sleep, is known to have several different causes, but the most common is the obstruction of the airway, the most characteristic symptom of which is snoring. Treatments include weight loss, the use of dental appliances or breathing assistance devices, and surgery. This text covers every aspect of this common the causes; intitial investigation and diagnosis, and treatment options, for both adults and children. Illustrated with diagnostic imaging, endoscopy, diagrams of local anatomy and surgical approaches, it features contributions from experts in each of the many clinical specialities involved with the management of these patients.