Bibliotheca is a term that refers to a collection of books or a library. It originates from the Greek word "bibliothēkē," meaning "bookcase" or "library." Bibliotheca can also refer to specific libraries or systems that organize and provide access to books and other written materials. In modern contexts, Bibliotheca often highlights the importance of preserving knowledge and promoting literacy. Many libraries, such as the Library of Alexandria in ancient times or contemporary public libraries, serve as vital resources for communities, offering access to a wide range of information and educational materials.