"The sick lie on straw bags and are left there, with no care, until they are dead." This is part of an account by Erwin Gostner, a prisoner who survived Mauthausen concentration camp. He was one of very few survivors, because nearly six million other people died as a result of the Nazis' "Final Solution"--the mass murder of Jews and other "undesirables" that we now call the Holocaust. This book shows what happened in the labor, concentration, and death camps, including the processing of arrivals, living and working conditions, and the methods used to kill the prisoners. This book explains how some people managed to survive the appalling conditions, and why millions of others did not. Each book includes: first-hand accounts from people involved in the Holocaust; an in-depth study of a key topic mentioned in the book; detailed timeline to help place important events; and a further reading and sources section.