Some of you are saying these books that you gain knowledge from should disappear after use. This is certainly not how I think it should work.
These books that you get knowledge from, lets call them special books, are not just your common book. If you read a normal book, all you get is the story. Now mixed in with all these normal books found throughout Yliakum are these special books.
When you read a special book for the first time, you take the quiz and gain knowledge. After you get the knowledge, you can read the book over as many times you wan\'t, you just can\'t take the quiz again.
This is true for every person. You can sell the book to others for them to read and gain the same insight you received. But they can only take the quiz once as well. If they don\'t take the quiz (ie. open the book, but don\'t read it), tough luck, they miss out.
Now, you can\'t tell the difference between special books and normal books until you get to the end. This will force players to read every book they find in hopes that they will find one of these special books and gain knowledge.
Note: When I refer to \"knowledge,\" I mean the programmable skill knowledge.