This special issue of the Bulletin of the John Rylands Library is devoted to William Blake. It explores the British and European reception of Blake's work from the late nineteenth century to the present day, with a particular focus on the counterculture. Opening with two articles by the late Michael Horovitz, an important figure in the 'Blake Renaissance' of the 1960s, the issue goes on to investigate the ideological struggle over Blake in the early part of the twentieth century, with particular reference to W. B. Yeats. This is followed by articles on the artistic avant-garde and underground of the 1960s and on Blake's significance for science fiction authors of the 1970s. The issue closes with an article on the contemporary Belgian art collective maelstrÖm reEvolution.