What is stack of books?

A stack of books is a pile of books that are placed one on top of the other. In a stack of books, the spine of each book is usually visible and facing outwards, so that the titles and author names can be read easily. Stacks of books can be found in many different settings, including libraries, bookstores, classrooms, and homes. They can be used for storage, display, or organization purposes. Additionally, the size and shape of a stack of books can vary, depending on the number and dimensions of the books that are included. Overall, a stack of books is a common sight for book lovers and a symbol of knowledge and learning.