Tunnel at the End of the Light : My Endoscopic Journey in Six Decades, Paperback by Cotton, Peter B., ISBN 1452820465, ISBN-13 9781452820460, Brand New, Free shipping in the US

The author is a physician whose career has spanned six decades, coinciding with and contributing to the remarkable developments in his speciality of gastroenterology, especially the use of flexible endoscopes in diagnosis and treatment. Th describes these changes, but focusses more on his personal journey and amusing adventures when travelling to teach all over the world.