Guillermo Velez (1955-2016) was a Colombian artist who held solo and group exhibitions worldwide since 1977, including in Colombia, Brazil, Peru, Portugal, Costa Rica, Poland, Belgium, Germany, Cuba, Korea, Ireland, Yugoslavia, Puerto Rico, United States, Spain, Japan, Chile, Italy, and Norway. He received several awards: 1981 and 1983 - Award at the VI and VIII Salón de Artistas del Viejo Caldas, Manizales, Colombia; 1981 - Award at the I Salón de Artistas de Occidente, Armenia; 1984 - Jury Award, VII Biennial of Norway, Fredrikstad, Norway; 1990 - Triennial Intergrafik Award, Berlin, Germany. He was a passionate follower of Pessoa and lived in Portugal for seven years. He had a Center of Pataphysics, the science of imaginary solutions, in Armenia, Colombia. He created a significant collection of editions for the Portuguese Center of Serigraphy, with a strong chromaticism. His work is populated by thousands of faces, some distorted, affirming the multiplicity in the humanistic ethics of existence. He passed away in 2016 in his home country.