Part I Basics of NBI -- Chapter 1 Principles and history of NBI -- Chapter 2 Tips for obtaining optimum viewing conditions using NBI -- Part II Atlas of NBI: Pharynx to esophagus -- Chapter 3 Overview -- Chapter 4 Atlas of Normal appearance -- Chapter 5 Atlas of Non-neoplastic lesions -- Chapter 6 Atlas of Neoplastic lesions -- Part III Atlas of NBI: Stomach and duodenum -- Chapter 7 Diagnostic system -- Chapter 8 Atlas of normal appearance -- Chapter 9 Atlas of non-neoplastic lesions in the stomach -- Chapter 10 Atlas of Neoplastic lesions in the stomach -- Chapter 11 Atlas of n on-neoplastic lesions in the duodenum -- Chapter 12 Atlas of neoplastic lesions in the duodenum -- Part IV Atlas of NBI: Colon to rectum -- Chapter 13 Overview -- Chapter 14 Atlas of normal appearance -- Chapter 15 Atlas of non-neoplastic lesions -- Chapter 16 Atlas of neoplastic.