Published in 1967, The Society of the Spectacle gave a remarkably accurate prediction of a media-centered, image-dominated future society, much like the globalized modern world of today. Debord very insightfully described the twenty-first century society dominated by social media, consumerism, and neoliberalism.
Guy Debord, The Society of the Spectacle (1967), translation by Fredy Perlman and Jon Supak (Black & Red, 1970; rev. ed. 1977). Online at http://library.nothingness.org/articles/SI/en/pub_contents/4