Later, he worked in the family business as well as reading classic masterpieces of literature by authors such as Lord Byron, Dante Alighieri and Charles Baudelaire.
At the end of the Spanish Civil War, Foix returned to the family business, and his artistic presence receded for some time.
During this time he compiled his entire poetic opus, and he also acted as a mentor for young artists close to the avant-garde scene, such as Joan Brossa.
His popularity continued to grow, thanks to Joan Manuel Serrat and his song És quan dormo que hi veig clar, which was adapted from one of Foix's poems.
J. V. Foix helped in 1985 to reestablish the students' association Federació Nacional d'Estudiants de Catalunya (FNEC).