Philipp Felsch, The Summer of Theory: History of a Rebellion, 1960-1990, (Translated by Tony Crawford), Polity, 2021

‘Theory’ – a magical glow has emanated from this word since the sixties. Theory was more than just a succession of ideas: it was an article of faith, a claim to truth, a lifestyle. It spread among its adherents in cheap paperbacks and triggered heated debates in seminar rooms and cafés. The Frankfurt School, Structuralism, Post-Structuralism, Adorno, Derrida, Foucault: these and others were the exotic schools and thinkers whose ideas were being devoured by young minds. But where did the fascination for dangerous thoughts come from?

In his magnificently written book, Philipp Felsch follows the hopes and dreams of a generation that entered the jungle of difficult texts. His setting is West Germany in the decades from the 1960s to the 1990s: in a world frozen in the Cold War, movement only…