Postmodernism can be seen as a reaction against the ideas and values of modernism, as well as a description of the period that followed modernism's dominance in cultural theory and practice in the early and middle decades of the twentieth century. The term is associated with scepticism, irony and philosophical critiques of the concepts of universal truths and objective reality.

 The term was first used around 1970. As an art movement postmodernism to some extent defies definition – as there is no one postmodern style or theory on which it is hinged. It embraces many different approaches to art making, and may be said to begin with pop art in the 1960s and to embrace much of what followed including conceptual art, neo-expressionism, feminist art, and the Young British Artists of the 1990s.

 Anti-authoritarian by nature, postmodernism refused to recognise the authority of any single style or definition of what art should be. It collapsed the distinction between high culture and mass or popular culture, between art and everyday life. Because postmodernism broke the established rules about style, it introduced a new era of freedom and a sense that ‘anything goes’. Often funny, tongue-in-cheek or ludicrous; it can be confrontational and controversial, challenging the boundaries of taste; but most crucially, it reflects a self-awareness of style itself. Often mixing different artistic and popular styles and media, postmodernist art can also consciously and self-consciously borrow from or ironically comment on a range of styles from the past.