Once the sole possession of fans and buffs, the SF author Philip K Dick is now finding a much wider audience, as the success of the films "Blade Runner" and "Minority Report" shows. The kind of world he predicted in his funny and frightening novels and stories is coming closer to most of us: shifting realities, unstable relations, uncertain moralities. "Philip K Dick: Exhilaration and Terror of the Postmodern" examines a wide range of Dick's work, including his short stories and posthumously published realist novels. Christopher Palmer analyzes the puzzling and dazzling effects of Dick's fiction, and argues that at its heart is a clash between exhilarating possibilities of transformation, and a frightening lack of ethical certainties. Dick's work is seen as the inscription of his own historical predicament, the clash between humanism and postmodernism being played out in the complex forms of the fiction. The problem is never resolved, but Dick's ways of imagining it become steadily more ingenious and challenging.