(sell Pamphlet): Edit
The pamphlets you got from random encounters can be sold in the library for gold. You might want a couple in the inventory as a random events features a beggar begging for pamphlets.
 -  (Read): Edit
You may gain a random amount of exp - the amount scales with your level.
 bind books): Edit
One raw hide in your inventory will be used and 1-3 books will be given for you to read.
[W] (Inspect): Edit
You will be asked to input a code to access a secret room in the library. For clues regarding the code, talk to the librarian.
[E] (Learn talents): Edit
There are 2 talent points given, and you can choose from five talents available - one for each stat.In order to be able to assign a talent, you need at least 300 points in that specific stat (counting weapon and gear).
A talent is unlocked permanently. Even if the relevant stat drops below 300, you will keep the talent.
[R] (Research): Edit
There is a chance you will get an item here. You can get pamphlets, crafting materials, marketing vouchers, and commodity coupons here. Good research takes time, and can only be performed during daytime.
[T] (Talk): Edit
The librarian gives clues, so talking to him again and again by spamming the enter button may help give at least 2-3 clues regarding the code. By asking him questions, he gives more clues regarding the code to make it solvable.
Possible solutions include 9853.