''Siglo XXI Editores'' ("21st Century") is an

Ibero-American Ibero-America ( es, Iberoamérica, pt, Ibero-América) or Iberian America is a region in the Americas comprising countries or territories where Spanish or Portuguese are predominant languages (usually former territories of Portugal or Spain). P ...

book publisher. It was acquired in 2021 by Capital Intelectual. Founded in Mexico on November 18, 1965, by Arnaldo Orfila Reynal, former director of the Fondo de Cultura Económica, who directed it until 1989, when Martí Soler, recognized as one of the best editors, directed it for two years.

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