The Premio Biblioteca Breve is a literary award given annually by the publisher Seix Barral (now part of Grupo Planeta) to an unpublished novel in the Spanish language.

[2] Due to the death of Juan Petit in January 1964 (replaced as literary director by Gabriel Ferrater), the exile of José María Valverde to Canada in 1967, and the death of Víctor Seix in October of that year, the jury was joined by Salvador Clotas [es], Luis Goytisolo, and Juan García Hortelano for subsequent editions.

In the same way, the Spanish political situation dictated that, in some editions, eligibility was extended to any Iberian Romance language, although no works in Catalan or Portuguese were awarded.

The 1971 edition's jury comprised Luis Goytisolo, Juan Rulfo, Joan Ferraté i Soler, and Pere Gimferrer, with Guillermo Cabrera Infante joining in 1972.

[2] In 1998, Basilio Baltasar, the new literary director of Seix Barral (by this time part of Grupo Planeta), decided to reconvene the prize, with the aim of recovering the spirit with which it was born, trying to recognize both Spanish and Latin American authors.