Jean-François Lyotard (1924 – 1998) was a French philosopher, sociologist, and literary theorist. His interdisciplinary discourse spans such topics as knowledge and communication, the human body, modernist and postmodern art, literature and critical theory, music, film, time and memory, space, the city and landscape, the sublime, and the relation between aesthetics and politics. He is best known for his articulation of postmodernism after the late 1970s and the analysis of the impact of postmodernity on the human condition. He was co-founder of the International College of Philosophy with Jacques Derrida, François Châtelet, and Gilles Deleuze.

In this major study, now available in paperback, Lyotard develops his analysis of the phenomenon of postmodernity, and examines the philosophy of Kant, Heidegger, Adorno and Derrida. Lyotard claims that it is the task of literature, philosophy and the arts to bear witness to and explain the links between modernity, progress and humanity, and the difficult transition to postmodernity.