Hey, I don't post much, but I had to mention a book that I don't think is noticed as much as it should be.
"Plot" by Ansen Dibell is by far my favorite writing book. I've looked at quite a few writing books over the years, but "Plot" and King's "On Writing" are the only ones I've ever read cover to cover.
I really think Dibell takes a different approach when she details what should and shouldn't be in your story, rather than how you as a writer get it there. It was one of the rare times where I would read something in a writing book and say to myself "That's what I did wrong last time!"
I make notes of some of the things she says that are most relevant to me, and I keep them close by while I write. I really can't suggest this one enough.