I have definite preferences concerning advertising for books. Consider this ad:
"Wild Materialism is a theoretical event. . . . One of the most brilliant, rigorous, and transformative books since De Man's Allegories of Reading or Jameson's Political Unconscious."
Any idea what the book is about or what the author is trying to say? From the referents, I suppose it is about literary theory. (That is the only place anyone would read De Man.) The ad is from a general circulation book review, so one would expect that the sellers want to make the book interesting to folks outside the secret society. I think it fails. I think almost always such ads fail. I can't recall ever considering buying (let alone actually buying) a book based on this sort of ad. The form is, me notwithstanding, quite popular.
Along the same lines, I recommend the ongoing discussion on the back page of the London Review of Books of "poetry babble."