4.5 stars.
What a useful book! As someone with extensive reading experience but a writing background limited to non-literary work, I found the first section of the book particularly enlightening. This was one of about a half-dozen writing guides I checked out at the same time, and this is one of the best. I think this will be an essential reading choice for anyone concerned with structure and form (and it makes a compelling case that you should be).
The first part is a very straightforward list of literary "shapes" you can aim to make when crafting a scene, a short story, chapter, or even a novel, moving far beyond Freytag's pyramid (also, "shape" is a metaphor, you can't graph them all), with a short essay on when and how to deploy them effectively. These are given catchy one-word, mnemonic names, but include concepts like an inciting conflict or intrusion, trauma or foreshadowing to engage the reader's emotions, mundane but crisp scene-setting as either a vivid illustration to immerse the reader or an opportunity to establish tension, and subverting the rules and expectations for the format. I'm sure one could come up with more than included here, but this is a great start on the essentials.
The bulk of the book is an A-Z glossary of literary terminology and concepts, covering genres and concepts from basic building blocks to technical minutiae. These entries are more than definitions: they discuss approaches to using the concept, as well as examples. This section's utilitarian format has been superseded by internet searches, but it's easy to browse and rich with information.
In short, this is the perfect browse for the early stages of a writing project and something handy to come back to for a dose of inspiration. If you are an experienced literary writer you might still pick up a few good ideas from the first section particularly.