bibliophage
/ˌbɪblɪoʊˈfeɪdʒ/Definitions
1. noun
A person with a voracious appetite for reading; an avid reader.
“She’s a bibliophage, finishing a book a week.”
2. noun
A person who collects books, especially one who buys and sells them.
“The old bookstore was owned by a bibliophage who loved rare editions.”