There are 3 types of bookcases which can be built in the bookcase hotspot:
Bookcase Image Level Materials Experience Wooden bookcase 4 4 Planks, 4 nails 115 Oak bookcase 29 3 Oak planks 180 Mahogany bookcase 40 3 Mahogany planks 420
Bookcases can store and provide an unlimited supply of quest-related and other books. Bookcases automatically contain these books; players do not need to fetch their books from the bank to store them in their bookcase(s).
It should be noted that even if you obtain a book, a quest might have to be done to find it in your bookcase. An example of this is The Great Divide, as it requires the completion of Mourning's End Part 1 to be stored.