It can be said that he is considered one of the most important artists in Spanish contemporary painting. Above all his works there is order and balance. Encompassed in what has been called Constructivism, Pure Geometry, or, by others, "concretism," Iglesias likes to use dark colors, even if they seem linear and austere. He is concerned with investigating. He wants to create a work through his labor and art which makes the observer think - not just because of the final product, but just as much because of the coherent evolution. It is a serene and accurate reflection of his human personality, which is tranquil, reposed, and full of a peculiar sense of humor." (Enrique Moral Sandoval, Madrid Deputy Mayor and delegate on the Committee for Culture, Youth, Education and Sports)