I just finished reading The Half-Made World. It was great. I'd love to read more, and I know that The Rise of Ransom City is a sequel of sorts.
I also see on Amazon that there is a short piece entitled "Lightbringers and Rainmakers" (also available on Tor.com for free). Since it's also written from Harry Ransom's first-person POV (unlike The Half-Made World, or the other short fiction that shares the same world on his website.), My natural inclination is to think that this was an excerpt released early, or a short piece that later became the whole novel. Is this the case? Or does it stand on it's own as a separate work that I should read before The Rise of Ransom City?