1963 – 1969

In 1963 he returned to Barcelona. He continued working on the Puertas series, depicting doors of Barcelona with a recuperation of matter-based form. Those doors were the bridge between his Art Informel period and the beginning of a process of synthesis, composition and structure of the canvas—without abandoning figuration—that grew increasingly geometric.

His work began to lean towards abstract geometry, Op art and kinetic art.