The article examines Polish documentary and memoir prose about the World War II as an emotional document of the era, based on the book “The Pianist: The Extraordinary Story of One Man’s Survival in Warsaw” by Władysław Szpilman. It considers the history of the creation and publication of the memoirs of the famous musician, who miraculously escaped death in the ghetto and hid in the ruins of the city. The analysis focuses on how Szpilman’s fate reveals the themes of fortitude, loneliness, moral choice, and the preservation of humanity under inhumane conditions. The article demonstrates how and why this text remains not only a historical testimony of the Holocaust but also a profound emotional document addressing contemporary culture.