Just an idea..

Prerequisite: the library should be organized by sections (romances, chronicles, pohems, magic manuals, alchemy, etc..). Then:

- I write a book
- I talk to Jayose, give him my book and make it available for reading to everybody via the library (in the appropriate section)
- I can decide to allow the reading of my book for free or for a certain amount of trias (which I tell to Jayose, he will propose to me alternatives, wich a cap)
- When somebody goes to the library and wants to read my book, I get just a notice if the book was for free, or trias if it had a price
- People should pay only once for a specific book and of course they can decide to decline after seeing the price
- Eventually, when a certain number of people reads my book, I can gain a rank in 'book writing' (new skill)
- Each time I rank up in 'book writing' Jayose can allow me to sell my new books for higher prices

I imagine that such a thing will require a lot of coding for developers, but I hope you like the idea