Tiny shift, big results: write your blurb FIRST.
Before the ad. Before the cover brief. Before the reader magnet.
Your blurb forces you to know the promise of the book in a few tight sentences. Once you nail that, every other piece (ad copy, email, cover direction) gets easier, because they all borrow from it.
The blurb isn't the last chore. It's the compass.
Paste your one-line hook below (just the single sentence that makes someone want your book). I'll reply to as many as I can.