'This is a remarkable book by a remarkable author. Jules Schelvis was himself a survivor of several Nazi camps, including a short stay of a few hours in Sobibor. After his retirement, he made it his mission to write the first detailed and scholarly book about this camp. His motivation was without doubt very personal and very emotional, as his young wife and her family were murdered in Sobibor. In spite of that (or maybe because of it) his research was scrupulously undertaken and his finished text is marked out by its precision and scholarly distance. This book is both an excellent historical study and also a monument to the events it examines.'Professor Hans Blom, University of Amsterdam, and Director, Netherlands Institute for War Documentation'Every historian is motivated by the urge to leave not one stone unturned. This is especially true for Jules Schelvis, who, after many years of archival research, managed to uncover the sinister facts of the extermination camp of Sobibor,