Books like Secrets of Screenplay Structure
Linda J. Cowgill
Secrets of Screenplay Structure is 318 pages, about 5 hours 50 minutes at 250 words a minute.
10 books to read next
How long each takes
How to Write a Movie in 21 Days 3.5 h 
Screenplay 4.5 h 
Save the Cat! 3.6 h 
Story 8.6 h 
The Art of Adaptation 4.4 h 
Alternative Scriptwriting 7.3 h 
The Complete Guide to Standard Script Formats 3.1 h 
Teach Yourself Screenwriting 6.0 h 
Adventures in the Screen Trade 7.8 h 
Which Lie Did I Tell? 9.0 h Bar height shows length. Estimated at 250 words a minute.