Recommend some books on filmmaking.

[Angelshare1]

I've been doing fimmaking for about 4 years and I've read some good 101 books on sound, directing, writing, editing that were very helpful in developing my skills. I want to expand my knowledge more in the area of directing and writing. Any suggestions that go beyond the basics?

There's just so many books out there and it's tough to tell which ones are for beginners and which ones are for intermediates.

Thanks!