
Philip K. Dick's 'Beyond Lies the Wub' is a short science fiction story. This story was first published in the year 1952 in a magazine named the Planet Stories.
That said, if you are interested in reading more by him, of his books I can recommend:
- The Three Stigmata of Palmer Eldritch
- Martian Time-Slip
- Galactic Pot Healer
- Eye in the Sky
- the middle part of Lies, Inc
Some of his short stories:
- Beyond Lies the Wub
- Faith of Our Fathers
Regarding Ubik, there is a Russian movie, Koma, that looks like it had Ubik as inspiration, and in that probably is more faithful than most Hollywood adaptations of his work.
I loved PKD's Beyond Lies the Wub, which was his first published story (published in 1952). I also really liked the story he wrote the year before (but which didn't get published until the year after) called Roog.