A BIBLIOPHILE is a book dealer
A BIBLIOTAPH is somebody who hides or hoards books, possibly under lock and key
A BIBLIOCAST is a collector of booksand treasures them for their value, beauty or content
A BIBLIOMANIC is nuts
A BIBLIOBONKERSCONKERS is a more extreme version
BIBLIOPOLY is bookselling by large global chains (or a famous board game based on the book trade)