Books like The Seven Basic Plots
Christopher Booker
The Seven Basic Plots is 736 pages, about 13 hours 30 minutes at 250 words a minute.
6 books to read next
How long each takes
99 Ways to Tell a Story 4.0 h 
Plotto 5.7 h Into the Woods 6.2 h 
The Modern Tradition 17.5 h 
Literature--Structure, Sound, and Sense--Sixth Edition 26.5 h 
Mimesis 10.3 h Bar height shows length. Estimated at 250 words a minute.