Great topic and post! I agree, Steemit can definitely play a positive role in book marketing. I released my first story on Steemit (about 1 year ago) chapter-by-chapter before later self publishing it. The positive feedback I got from members of the Steemit community kept my excitement for writing going for 2 more books, and some short stories as well!
Good luck to you on your future writing endeavors! :)
I'm very happy to see this, as this is what I'd like to ultimately do as well. How often did you publish your chapters? How long were they? What was the engagement (comments, upvotes, etc.)? Anything you can tell me would be wonderful.