Carcinoma of the gastrointestinal tract remained a major health issue worldwide, which is, however notoriously difficult to treat. One of the major reasons for such a poor result is that these cancers are diagnosed at advanced stage. There is a recent increase in the number of gastrointestinal cancers diagnosed at early stage. This is attributed to an increasing recognition of these early stage cancers through a recent development in the technology of endoscopy. This book on the endoscopic diagnosis of early GI neoplasia, containing lots of illustrations, artwork and numerous short video clips, serves as a bridge between the recent development in endoscopy and the knowledge of gastroenterologist, endoscopist and surgeons.