bibliophilia

noun

bib·​lio·​phil·​ia ¦bi-blē-ə-¦fi-lē-ə 

-¦fē-,

-blē-ō-

: great or excessive love of books

Thus, book theft borne of base greed, not bibliophilia, mocks the book world faith that love of books leads to a life of virtue.

—Chip Brown, Washington Post, 5 Dec. 1980

also : enthusiastic or extreme interest in collecting books

But then bibliophilia is a pathological condition marked by covetousness, elitism and other undesirable, seriously psychopathic traits.

—Elizabeth Young, The Guardian (London), 24 Oct. 1998

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