Towards abstract art. Preceding the trend for abstract art, Antoni Gaudi creates an original and fascinating work of art on the main façade of Casa Batlló.The architect knew how to adequately combine sharpes and colors stemming from the correct choice of materials.Like so, he employed the assembly technique, collage, trencadís, and used blocs of color, organic surfaces and shapes that generated movement, which in their totallity lent the house to a strong personality, and set a precedent for the future artistic vanguards of the 20th century