Barrett's esophagus is a condition where stomach acid damages the esophageal lining (the lining of the tube that leads from the throat towards the stomach). The lining is changed to a lining similar to that of the distal parts of gastrointestinal tract. A small percentage of Barrett's esophagus patients develop a rare but usually fatal cancer of the esophagus (esophageal adenocarcinoma). Barrett's esophagus is treatable. This concise book outlines the causes, tests and available treatment options for this devastating disease.