Bethesda locked the bookcases in Winterhold's Arcanaeum, but threw away the key. I found the key, and placed it in the game!

Your well-read thief now can steal all the books from the library!

The key is in Urag gro-Shub's pockets, and it's quite hard to get!

All the bookcases in the circular hall needs the key to open, including the display case.
Bookcases that weren't locked before are also locked as well, but they can be picked. Key will also work for these.

Compability:
Won't work if you use a mod that actively changes the layout or objects in the Arcanaeum.
Should work with any texture mods.

Credits:
Bethesda,
Me