From Official Wiki of the Renaissance Kingdoms

There are many books that can be consulted in the library of the county universities.

Reading a book takes 22 hours. It is impossible to work elsewhere at the same time. However, it is free.

Reading a book can serve different purposes:

Please note that in order to read certain books and benefit from their teachings (to understand them basically), you need to have a certain level of proficiency in Greek or Latin.

Here is a list of all the books: