Content by or about the Situationist International, an international organisation of social revolutionaries made up of avant-garde (anti-)artists, intellectuals, and political theorists which was prominent in Europe from its formation in 1957 to its dissolution in 1972.
How situationist books are not understood
The Situationists reply to some misrepresentations and stupidities of their critics. From Internationale Situationniste #12 (September 1969).