The Screenwriter's Problem Solver by Syd Field
I was reading this at the library and I just had to buy it. It was talking to me! I'm in the middle of a rewrite on American Gothic Chicago. I let the work sit for a few months and then thought about rewriting it as a screenplay. The screenplay treatment brings the work down to its essence, allowing me to see some of the narrative problems.
I remembered Field from the first screenplay that I wrote, so I updated my Final Draft software and I've been working on this project. Field's book is exactly what I needed right now. I recommend it to all writers. I have his other books, too.
Mindset: The New Psychology of Success by Carol Dweck, PhD
I read the first chapter as a preview on my Kindle and I ordered it from the library. It has a lot of great reviews on Amazon and it was recommended by a screenwriting instructor. I'll see if I make it a part of my permanent library. I tend to be persistent in my creative approach. I really love what I'm doing, so it all becomes part of the process.