The Library is one of the Infinite Empire's information hubs. The Preservers and witnesses maintain and control all information within the Library's data clusters. The library is situated in the center of the Desert of Giants and sits at the base of Cloud City, connected to it by a single elevator. The outskirts of the library are also patrolled by a large, sand-burrowing cat named Mother. When Valor reaches the library, he speaks to the current Preserver, but can also speak to the old preserver on the lowest floor after Stardust and Marty's Boot have been obtained.
The upper floor of the library contains every story you've collected so far, where they can be reread at any time.