book lover vs scholarly person

book lover and scholarly person both are nouns.

Word	Noun	Adjective	Verb	Adverb
book lover	Yes	No	No	No
scholarly person	Yes	No	No	No

As nouns, scholarly person is a hypernym of book lover; that is, scholarly person is a word with a broader meaning than book lover:

book lover: someone who loves (and usually collects) books
scholarly person: a learned person; someone who by long study has gained mastery in one or more disciplines

Other hypernyms of book lover include bookman, scholar.

book lover (noun)	scholarly person (noun)
someone who loves (and usually collects) books	a learned person; someone who by long study has gained mastery in one or more disciplines