In this paper, I focus on the question of the testimonies of the Shoah and the circumstances of their creation. The testimony, a specific sociodiscursive object, is described by detailing its defining elements (autobiographical certification, referentiality pact, collective thrust, etc.), by reflecting on the conditions of its accreditation and by comparing it to the other discursive modalities and strategies (the discourse of the historian, literary accounts, etc.) used to convey the extreme and unshared reality of deportation and the experience of concentration camps. Adapted from the source document.