* Library: This is the most common and general term, referring to a collection of books, often in a physical building.
* Collection: This emphasizes the gathering or assembling of books.
* Anthology: This refers to a collection of literary works, often of a similar genre or by a specific author.
* Bibliotheca: This is a formal and less common term, derived from the Latin word for "library."
* Bookshelf: This refers to a collection of books arranged on a shelf.
* Folio: This term is used to refer to a collection of bound manuscript pages.
The best collective word for books will depend on the specific context.