Theory and rhetoric, legislation and administration, art criticism, exhibitions and museums, monuments, militant art... Etelibro is the first exhaustive and documented study of a period that has often been forgotten and , many others, have been analyzed from an ideological point of view. Precisely because of its intense ideological load, the period 1936-1951 demands a rigorous investigation, which adheres exactly to the data, which accounts for a complex panorama and which bases each and every one of its affirmations.