@creatr, thanks for the thoughtful response!
"Public domain;" yes I get that, from the legal angle... more intended as a figure of speech, here.
I wouldn't expect you to remember, but some months back I wrote a piece on authors using Steemit to "serialize" potential books as a viable alternative to trying to get sponsors on a site like Patreon... it got a mixed bag of responses, but it really does make a lot of sense to me. It allows for the building of a targeted "following." You get almost instant feedback... including some that may guide the ongoing development of the book. And you get some "pocket money" as you go along. At the end, you put it all together and offer it as a for-pay "souvenir" (Seth Godin's term, not mine) to your followers... keep a log of everyone who ever comments on the "book" posts and at the end send 0.1 SBD to each with a "thank you for being part of the journey and here's a link to the final book published on Amazon" memo.
Steemit's own @ericvancewalton has already blazed that trail with one of his books... seems it has worked pretty well for him.
Thanks for the kind words, btw... that means something to me and gives me a small measure of hope that "engaging content" is worth the effort!
I thought your "public domain" comment was probably parabolic, but now I'm certain... ;)
Depending on the book, the topic, and the magic pixie dust called "virality," Amazon books seem to range anywhere from total flops to raging, life-changing successes... A couple of cases in point would be "The Martian" by Andy Weir, and "Wool" by Hugh Howey.
So, when will you begin writing your book? That's the problem with interacting here on Steemit; you loose pretexts and excuses when you start to expose your thoughts and intentions... You know, peer pressure starts to kick in? ;) :P