Seven Interpretive Essays on Peruvian Reality (Spanish: Siete Ensayos de Interpretación de la Realidad Peruana, also known as Los 7 Ensayos or the Seven Essays), published in 1928, is the most famous written work of the Peruvian socialist writer José Carlos Mariátegui and considered his magnum opus. It was published in Lima, in 1928, and is accredited to establishing its author as one of the most widespread Marxist voices in Latin America. It is a work that has been reissued dozens of times, in addition to being translated into Russian, French, English, Italian, Portuguese and Hungarian.