On September the 13th, in its Central Offices in Athens, Greece, the World Federation of Trade Unions, commemorated the artwork of our Cuban comrade, Walter Diaz Moreno, winner of the first prize in the Poster Contest in 2015. His poster was voted between many pieces of work from all continents. George Mavrikos, the WFTU General Secretary, awarded him with a commemorative plaque, during a plain event, pointing out the dynamism and creativity of his work. The contest winner has also been congratulated by the Cuban Ambassador in Greece, comrade Osvaldo J. Cobacho MartÃnez, who was also present.