Pour l'Internationale situationniste, les années qui vont de 1965 à 1968 sont marquées par une implication déterminante dans ce que l'on pourra appeler le cours de l'Histoire.L'I.S. va se retrouver, malgré le boycott ou la récupération de ses thèses, au centre du débat culturel (politique et artistique) de l'époque. Situation qu'elle mettra à profit en faisant publier simultanément La Société du spectacle et le Traité de savoir-vivre à l'usage des jeunes générations ; et en inspirant divers scandales qui marqueront de leur empreinte l'explosion de Mai 68.
Guy Ernest Debord was a French theorist, writer, filmmaker, hypergraphist and founding member of the groups Lettrist International and Situationist International. In broad terms, Debord's theories attempted to account for the spiritually debilitating modernization of the private and public spheres of everyday life by economic forces during the post-WWII modernization of Europe. Alienation, Debord postulated, could be accounted for by the invasive forces of the 'spectacle'—"a social relation between people that is mediated by images." Central to this school of thought was the claim that alienation is more than an emotive description or an aspect of individual psychology; rather, it is a consequence of the mercantile form of social organization which has reached its climax in capitalism. Debord committed suicide, shooting himself in the heart at his property on November 30, 1994.