"Sales Pitch" is a science fiction short story by American writer Philip K. Dick, first published in Future Science Fiction magazine, June 1954. The premise is the omnipresent, intrusive and even aggressive advertising and marketing. At the end of the story, the protagonist is driven mad by a robot who can forcefully market himself, and refuses to take no for an answer. The subject was of concern to Dick, and features in his early works such as The Man Who Japed. Source: Wikipedia (en)