book review vs review article

book review and review article both are nouns.

Word	Noun	Adjective	Verb	Adverb
book review	Yes	No	No	No
review article	Yes	No	No	No

As nouns, review article is a hypernym of book review; that is, review article is a word with a broader meaning than book review:

book review: a critical review of a book (usually a recently published book)
review article: an essay or article that gives a critical evaluation (as of a book or play)

Other hypernyms of book review include critical review, critique, review.

book review (noun)	review article (noun)
a critical review of a book (usually a recently published book)	an essay or article that gives a critical evaluation (as of a book or play)