Trained at the Barcelona Faculty of Fine Arts, Grau is an accomplished artist with works held at several major museums and public collections.

His works often express his inner world through formal and stylistic themes. He takes us into surrealist informalism with a vision that is highly personal in its interpretation. Like many other twentieth century artists, he is committed to his times, valuing art as a forum for the expression of political or social protest against the injustices that still plague humanity.