Things are typically used for purposes such as multi-descers, puppets, or specifically approved items which require their own code. Books should be uncommon, rare and expensive in Vartania. Even those with 'great' libraries should have libraries perhaps in the dozens, with one or two notable exceptions on the entire game. Furthermore, they are far too precious to keep on shelves - stacked on tables or displayed on stands is a much more likely place to find them. Although we've received many western influences since then, any ancient art should be in fresco or mosaic, with a lot of gold for illumination.
Oil painting is a latter-day, western phenomena.
This one's just a sidenote. If we want to be strictly 14th Century, avoid the use of lace. RL information, however, is considered privileged except where publicly broadcast by the player. This means that your RL name, age, gender, sexual orientation, etc. are your business, and don't let anyone tell you otherwise. What you create, write, build and contribute to this game is considered to be your own intellectual property.