The term "library stack" is commonly used to refer to the shelves in a library where books are kept. However, there are a variety of synonyms that can be used to describe these stacks. Some alternatives include bookshelves, bookcases, book racks, and book cabinets. These terms are all ways to refer to the same basic concept of a place where books are stored in an organized manner. Other synonyms may also include phrases such as collection nooks, reading nooks, or media storage areas. Regardless of the term used, they all ultimately refer to the same essential part of a library where books are kept.