Only came to this book through a winding road of Valis by PKD in his description of David Bowie in the novel. PKD was influenced by Bowie in the movie "The man who fell to earth". I watched, thought it was interesting, and THEN finally read the novel, which, I'm sure most people will agree, was a lot better than the movie. That being said, I did like the book quite a bit, being an outsider type of novel with a lot to say about those earthling aliens. Fun read and well done, well worth being a classic, although perhaps it doesn't date as well as other novels. No heavy science, just a sociological discussion.