This is my next thing-I-want-to-get-going
It would be bitesize bookclubs. A speech by Lenin. A response to a letter.
People would read it in one or two sittings and discuss it for a week.: it is bitesize: long books are steaks that the bookclub emcee carves into bits.
Just teasing the idea here to tickle your brain and get you thinking about letters, speeches, things on marxists.org etc.
https://redsails.org/masses-elites-and-rebels/