Good screenwriting books?

Curious if Margaret or anyone can make some recommendations for books on screenwriting. These are the ones that I have on a list so far:

"Inner Drives: How to Write and Create Characters Using the Eight Classic Centers of Motivation" by Pamela Jaye Smith

"How to Build a Great Screenplay : A Master Class in Storytelling for Film" by David Howard

"Save The Cat! The Last Book on Screenwriting You'll Ever Need" by Blake Snyder

"Cinematic Storytelling: The 100 Most Powerful Film Conventions Every Writer Should Know" by Jennifer Van Sijll

Some screenwriting books are better than others, but the best way to really learn how to write a great script is to read a lot of scripts. Get the published shooting scripts to as many Best Screenplay winners as you can and see what they do that makes them so great.

Syd Field's books are quite good...

I yield the floor to my more knowledgeable colleagues. Screenwriting is not my area of expertise.

I don't pretend to know anything about writing screenplays (I have finished exactly 75% of ONE, although it's quite good ), but the book that gave me a lot of solid advice was this one:

"How Not to Write a Screenplay" by Denny Martin Flinn. It's very readable and helps you tailor your screenplay to the audience that will read it. (btw, one of Flinn's screenplay credits is Star Trek VI: The Undiscovered Country.)

Amazon link

^May we assume you're working on the last 25%?

Uh, not at the moment.

Actually, once the next Trek movie is in production, I'll probably publish it here just for giggles and--hopefully--helpful criticism.

Yes, it's a Star Trek movie.

But it's got a lot of great stuff in it (the Klingon version of Pearl Harbor is one of my faves) and it has a plot more like one of the 60s episodes (i.e., corresponds to a present day issue).

Thanks everyone for chiming in. I'll look into Denny's book.

There's one by Lajos Egri (I think that's how it's spelled) that's worth a look. It's more aimed at theatre writing, and it's very opinionated, but a lot of people swear by it.

Try the Syd Field. I've written exactly one teleplay (a pilot) and it sold.