Posdata was founded as a periodical publication in 2002 by poet and journalist José Jaime Ruiz, becoming a meeting point for the expressions of hundreds of national and internationally renowned authors. The publishing house's adventure began in 2006 with the publication of the poetry collection Bóreas y el Sol (Breas and the Sun) by Francisco J. Serrano and Rodolfo Alonso's translation of Carlos Drummond de Andrade's poetry anthology.

Posdata's national catalog includes authors such as Francisco Hernández, Daniel Sada, and Hernán Bravo Varela; while the international catalog includes authors such as Juan Manuel Roca, Juan Gelman, Ana María Shua, and translations into Spanish by Polish poet Ewa Lipska, as well as the 1996 Nobel Prize winner in Literature, Wislawa Szymborska.

Based in Monterrey, the publishing house has more than 30 published titles, with a print run of between 1,000 and 2,000 copies, and titles in production within its four collections: Posdata, Versus, Hormiga Iracunda, and Lágrima de Batavia.