Karel Kosk 19262003 reputation as a creative thinker is owed largely to his philosophical blockbuster Dialectics of the Concrete first published in Czechoslovakia in 1963. In reintroducing Kosiks philosophy to Englishspeaking readers Kosiks work is shown to be important not only as a leading intellectual document of the Prague Spring but also as an original theoretical contribution with international impact that sheds light on the meaning of labour and praxis cognition and economic structure and revolution and the crises of modernity. Contributors include Ian Angus Siyaves Azeri Vit Bartos Jan Cerny Joseph Grim Feinberg Diana Fuentes Gabriella Fusi Tomas Hermann Tomas Hribek Xiaohan Huang Peter Hudis Petr Kuel Ivan Landa Michael Lowy Jan Mervart Anselm K. Min Tom Rockmore Francesco Tava and Xinruo Zhang.