Today I accidentally realized that both the WordPress Micropub server and the Post Kinds plugin support read-status values of “to-read”, “reading”, and “finished”. I’ve managed to tweak my PESOS work flow with Goodreads.com to also include these experimental pieces using the following additional snippets of code appended to the “Body” fields I’ve described before:
&read-status=to-read
&read-status=reading
&read-status=finished
I’ve added one of the three snippets to the appropriate IFTTT.com recipes for  Goodreads feeds to create the appropriate output. Here’s the first post I’ve made using the new recipe for bookmarking a book I’d like to read: https://boffosocko.com/2020/02/15/meditations-marcus-aurelius/.
Previously I’ve been using simple notes to create read posts for books and just adding a “read” category to give me more control over the data in the posts. (I only used read posts previously for online articles.) Now that I’ve got the ability to provide some better differentiation for my progress, I think I’ll switch to using read posts for all my reading (books and articles).
Incidentally following IndieBookClub.biz and Indigenous for Android which added support for these earlier today, my method may be the third to use these microformats in the wild. Thanks to gRegor Morrill, Kristof De Jaeger, David Shanske, Ryan Barrett, and Charlotte Allen for their prior work, experimentation, code, and examples for allowing me to get this working on my website. 

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