I've been asked by Celtx to review their new book Open Source Screen Writing Beginner's Guide by Ralph Roberts. This shows us the way to write professional scripts and screenplays in the only way acceptable to Hollywood producers and agents. For writers in this field this is a complete page turner and should be added to any scribe's list of must have books.
For a sample chapter go to: http://tinyurl.com/3nunvyj
The complete EBook can be downloaded at: http://link.packtpub.com/5frggq