I'm a sucker for books on writing. Sometimes, I even read them. Stephen King's book "On Writing" is a classic. I also recommend just about anything by Lawrence Block, whether it's his noir fiction or essays on writing from his years as a columnist for Writer's Digest.
There's no shortage of books on writing, and probably every writer has their favorites. My writer buddy Tal Klein ("The Punch Escrow") recommended two books for me: "Save the Cat" by the late great Blake Snyder and Robert Mckee's "Story." While both focus on screenwriting, these books are also appropriate for genre fiction, games, radio plays etc. They're easy to read and have a mix of practical advice, technique and motivation. They also do a good job analyzing stories such as The Godfather, Chinatown and others. These books are also available on Audible, which is particularly helpful for those with a long commute and not enough time to read.
Snyder and McKee put heavy emphasis on a standard 3 act story structure with key moments along the way. They didn't invent this model, but they are probably the best at demonstrating in practical ways how to apply these ideas to develop a stronger story.
While some might fear that following a "Hollywood formula" will ruin their creative endeavor, I found it very helpful to understand techniques that keep the story moving along. (Scenes that don't move the story along and don't have dramatic conflict need to be cut!) In my view, having a good structure helps more than it hurts, and learning how to raise the stakes and add dramatic tension is as important in a novel as it is in film.
Your mileage may vary, but after listening to these books on Audible, I was able to strengthen my work-in-progress novel considerably. Now back to work!