The visual discourse of Díaz is mainly composed of matter, color and symbols, through whom he gives strength, solidity and meaning to his work, as a result of his personal experiences and that, in the same way, have allowed him to express his emotions, suggest ideas and concepts about the city he has inhabited, which he has internalized and transfigured into significant artistic products, making use of extra-pictorial materials -asphalt, plastic, metals, resins, fabrics, graphic prints, among others- combined with the pictorial: oil or acrylic.