I was watching youtube videos about VR games and I saw one about the Stormlight VR experience. The guy in the video mentioned it was based on a book and I thought it looked interesting so I looked into it a bit, but didn't buy it right then. Eventually I just happened to see a copy of The Way of Kings while I was in a bookstore and I remembered it, so I ended up buying it. So yeah, not exactly how one usually discovers a new author.