It comes from the Greek word "biblion" (βιβλίον), which was originally a term for a small piece of papyrus or parchment used for writing. Over time, it came to refer to a collection of written works, and eventually, a book as we know it today.
You can find "biblio" as a prefix in many words related to books and libraries, like:
* Bibliography: A list of books or other sources of information
* Bibliophile: A lover of books
* Bibliomania: An obsessive desire to collect books
* Bibliotheca: A library
* Biblical: Relating to the Bible (a collection of sacred books)