bibliopolist
/ˌbɪblɪoʊˈpɒlɪst/ or /ˌbɪbli.oˈpɒlɪst/Definitions
1. noun
A person who deals in books, especially an antiquarian book dealer.
“The bibliopolist had an impressive collection of rare first editions.”
2. noun
A person who collects and studies books, especially an expert in bibliography.
“The bibliopolist spent years researching the history of printing presses.”