Riera i Aragó (Barcelona 1954) belongs to that generation of artists who in the eighties took up the languages of painting and sculpture, being one of the protagonists of the recovery of the sculptural practice that the avant-garde of the thirties, from of iron, they had begun. After the dematerialization of the work of art that conceptual art entailed, and once pictorial informalism in all its versions had been exhausted, they discovered in the eighties that sculpture unrelated to statuary and naturalism had enormous expressive possibilities and at the same time, he was capable of conversing with the urban scene, the center of modern life. As one of the followers of those avant-garde, in the beginning he maintained a special sensitivity for traditional materials -iron, bronze, wood...-, which, many times, he recovered and recycled to focus all his plastic discourse on the environment of archeology of machinery.