What metaphors are used in Postmodernism by ?

The writer notes that Philip K. Dick is a writer, who is misunderstood both inside and outside his field. Because his publishers forced him onto a treadmill of rapidfire production, Dick's novels are always plagued by a certain amount of sloppiness, lack of verbal grace, and two-dimensional character portrayals. Nevertheless, Dick's brilliant fictional imagination was capable of inventing plots of considerable intricacy and metaphorical suggestiveness. In his best works, The Man in the High Castle, Martian, Time-Slip, Ubik and Do Androids Dream of Electric Sheep?, Dick devised highly original central plot structures that deal with many of the same issues common to postmodernism: metaphysical ambiguity, the oppressive nature of political systems, entropy, the mechanization of modern life.