booklover vs bookman

booklover and bookman both are nouns.

Word	Noun	Adjective	Verb	Adverb
booklover	Yes	No	No	No
bookman	Yes	No	No	No

As nouns, bookman is a hypernym of booklover; that is, bookman is a word with a broader meaning than booklover:

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

Other hypernyms of booklover include scholar, scholarly person.

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