We Wept Without Tears: Testimonies of the Jewish Sonderkommando from Auschwitz, is a book by Gideon Greif.
The writer, Gideon Greif, is a researcher at Yad Vashem (יד ושם), Israel, the principal institution in the world studying the history of the Holocaust.
He had also served as a visiting professor at The Sue and Leonard Miller Center for Contemporary Judaic Studies, the University of Miami.
A note by the publishers states: "The book provides direct testimony about the 'Final Solution of the Jewish Problem,' but it is also a unique document on the boundless cruelty and deceit practiced by the Germans.
It documents the helplessness and powerlessness of the one-and-a-half million people, 90 percent of them Jews, who were brutally murdered in the gas chambers of Auschwitz-Birkenau.