This website is dedicated first of all to the souls of my parents, whose memory has sustained me through the hardships of my life. I also dedicate this book to all my fellow prisoners at Tuol Sleng and to all the other millions of people who died during the three years, eight months, and twenty days. And it is dedicated to the generations of Cambodians to come, as a reminder of what can happen, and has happened, in our country: unbelievable horrors committed by their own people that I hope will never be repeated.

I am very grateful to Youk Chhang and the staff of the Documentation Center of Cambodia (DC-Cam) who have worked so hard to preserve the history of the Khmer Rouge years, and who showed such generosity in helping me with publishing the book. In addition I extend my thanks, to Sim Sorya Kimsroy Sokvisal and Men Pechet as well as to Seth Mydans and Mariko Takayasu for their kind help with the text.