What books do you read on screenwriting?

[roadrunner2]

I don't write camera directions either. I happened to pull those scripts without realizing what they were until later. One was Erin Brockovich.  I read the shooting script and then found the first script. Lots of changes and so interesting.

[padnar]

I was advised not to write camera directions and that suits me
because if it is the case it would have been a bit difficult to write a script.
padma

[roadrunner2]

Exactly. I've read several scripts that were shooting scripts and while I got the jest of things, it confused me as to  what a spec. script entailed until I started reading some books on screenwriting. My home computer has gone belly-up, so  for now, I use the library computer. Makes for limited time, but I still get some reading time in each week.

[rnbrewer]

Lew Hunters "Screenwriting 434" was a good read. He includes a script of his own and walks you through the process. Other than that I have to agree with Don on this one. Screenplays are one of the best sources for learning the craft. The trick, of course, is finding spec scripts. 

[ScriptNurse]

I recommend Charles Deemer's Practical Screenwriting and Michael Hauge's Writing Screenplays That Sell.

BUT ...

There is no substitute for reading screenplays and then writing them.

[roadrunner2]

I've read a few, but I've been reading Hal Ackerman's book, "Screenplays That Sell" and it seems to click for some reason.  Anybody else got one that clicks for them that might be helpful?