Voici un article assez imposant sur Philip K.Dick. Il s'agit d'une biographie. 

C'est ici. 

Extrait : 
"Discouraged by the fact that sf writing was dominated by “trolls and wackos” (he considered Robert Heinlein a fascist, though he borrowed money from him), Dick cranked out eight semi-surrealistic mainstream novels — about, for the most part, the unhappy domestic lives of TV salesmen — by the end of the decade, but couldn’t even get his own agent to read them. Although his wild anti-totalitarian tales were being translated for enthusiastic audiences in countries which understood such matters (Italy, West Germany, Japan, and particularly France-where, like Poe before him, Dick seemed a bohemian, dissident intellectual not taken in by the consensus illusion), in the U.S. Dick was trapped in the sf ghetto. He had great hopes, however, for the success of his novel Time Out of Joint (1959). The plot, about a creative type who realizes, when his sleepy 1958 town slowly begins to dissolve (literally) around him, that it’s actually 1994, and that a militaristic government is employing a large-scale illusion to keep him pacified, was too weird and subversive even for Ace. It was published by Lippincott as a “novel of menace,” and bombed."