"My only document is the number on my arm..." is a significant non-fiction book that documents the voices of survivors of Nazi persecution. This collection of testimonies, gathered by the International Tracing Service (ITS), provides deep insights into the experiences and memories of those affected. The author, Susanne Urban, has made it her mission to preserve these important stories and make them accessible to the public. The book is not only a historical document but also a contribution to the culture of remembrance and engagement with the past. It is aimed at readers interested in history, particularly that of the Nazi era, and who appreciate the importance of eyewitness accounts. The careful presentation of the content and the respectful portrayal of the survivors make this work a valuable resource for research and education.