The capture of the postmodern by Jameson has set the terms of subsequent debate. It is no surprise that the most significant interventions since his entry into the field have likewise been Marxist in origin. The three leading contributions can be read as attempts to supplement or correct, each in its own way, Jameson's original account. Alex Callinicos’s Against Postmodernism (1989) advances a closer analysis of the political background to the postmodern. David Harvey's Condition of Postmodernity (1990) offers a much fuller theory of its economic presuppositions. Terry Eagleton's Illusions of Postmodernism (1996) tackles the impact of its ideological diffusion. All these works pose problems of demarcation. How is the postmodern to be best periodized?