This case-based book reviews the disorders of the respiratory tract, both upper and lower, that are routinely present in the primary care setting. The basic epidemiology, pertinent anatomy and physiology, and differential diagnosis, diagnosis, and treatment aspects of the full range of respiratory disorders are covered, including those such as allergic rhinitis, sinusitis, pediatric and adult asthma, COPD, and a host of others. An array of non-airway disorders, such as obstructive sleep apnea and GERD, that present with respiratory symptoms are also discussed. The author provides a concise, up-to-date overview of these issues, and also provides helpful suggestions on-when to refer to a specialist.