If you are talking about a way to publish books on Nostr in a way that is difficult, if not impossible, to censor, you should look into Project Alexandria that nostr:npub1m4ny6hjqzepn4rxknuq94c2gpqzr29ufkkw7ttcxyak7v43n6vvsajc2jl and others are working on.

Check out her article about it here: https://habla.news/u/laeserin@getalby.com/1719204947236