These may be the triad of book publishing and marketing.
Think about it for a moment. You're either at a bookstore or an online venue, perusing the next great read. If a cover intrigues you, and you're in the bookstore, you'll probably pick it up and read the back. Or even read the first page. That covers two of the three. The equivalent to keywords would be the section of the store they're located in. You would never find any epic fantasy novels by Brandon Sanderson in the mystery/thriller section. And you wouldn't find any Agatha Christie mysteries in the travel or self-help section.
It is important covers, blurbs, and keywords are up to date. I am in the process of working through my books, first with my thriller series, and then going through the rest.
I surpassed the 11,000 word mark on my new story. It's an escape room suspenseful mystery on a large scale. I will share more when it's complete.
When will it be? I'm shooing to have it complete by the middle of this month.