I've been meaning to read 'Educating to Govern' by Detroit Communist Grace Lee Boggs. Also 'Teaching in the Regio Emilia Way' is in the same vein of child-directed learning as Montessori and Waldorf without the eco-fascist associations. It was developed in the heartland of the Communist Party of Italy during their strongest period and was a real innovation in progressive, child-centered education.

Summerhill: a Radical Approach to Childrearing is a charming example of the last vestiges of pre-Marxist utopian socialism applied to the context of the British boarding school. Not too too much to be learned or applied for most urban contemporary teachers but it is a beautiful encapsulation of an experiment.