Between 1994 and 1999, the USC Shoah Foundation Institute interviewed nearly 52,000 survivors and other witnesses of the Holocaust in 56 countries and in 32 languages. While the majority of the interviews are with Jewish Holocaust survivors, the archive also includes the testimonies of political prisoners, Sinti and Roma (Gypsy) survivors, Jehovah's Witness survivors, survivors of eugenics policies, and homosexual survivors as well as rescuers and aid providers, liberators, and participants in war crimes trials.
Each interview averages over two hours in length. Each testimony discusses the interviewee’s prewar, wartime, and postwar life experience, in his or her home country and country of immigration, such that the archive covers a significant part of the history of the 20th century around the world. At the conclusion of the testimony, the interviewee displays photographs, documents, and artifacts pertaining to his or her life story.