Alfréd Israel Wetzler, who wrote under the alias Jozef Lánik, was a Slovak Jewish writer. He is known for escaping from Auschwitz concentration camp and co-writing the Vrba-Wetzler Report, which helped halt the deportation of Jews from Hungary, saving up to 200,000 lives.
Alfréd Wetzler
The Vrba–Wetzler report is one of three documents that comprise what is known as the Auschwitz Protocols, otherwise known as the Auschwitz Report or the Auschwitz notebook. It is a 33-page eye-witness account of the Auschwitz concentration camp in German-occupied Poland during the Holocaust.
Sketch from the report: left, Auschwitz I showing the DAW, Siemens and Krupp factories; right, Auschwitz II showing four gas chambers and crematoria.
Alfréd Wetzler
A sketch from the report, showing the rough layout of the crematoria
The Hungarian biologist George Klein saved his life by fleeing, rather than boarding a Holocaust train, after he read the Vrba–Wetzler report as a teenager.