William Goldman Four Screenplays
On Writing: A Memoir of the Craft - Stephen King
Dan O'Bannon's Guide To Screenplay Structure
Plotting and Writing Suspense Fiction - Patricia Highsmith
Screenwriting for Micro-Budget Films - David J. Greenberg
Character is Structure: The Insider's Guide to Screenwriting - Phil Hughes and Ted Wilkes
Psychology for Screenwriters - William Indick
Writing for the Cut - Greg Loftin
Next Level Screenwriting - David Landau & David Bennett Carren
Writer's Journey - Christopher Vogler