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The Mauthausen Trilogy, also known as "The Ballad of Mauthausen", is a collection of three books by Spanish writer and journalist Jorge Semprún. The books were published in 1961, 1965, and 1968, respectively. The trilogy tells the story of Semprún's experiences as a prisoner in the Mauthausen concentration camp during World War II. The books have been translated into many languages and have been adapted into films and television series.