Books like The Triangle of Love
Robert J. Sternberg
The Triangle of Love is 319 pages, about 5 hours 51 minutes at 250 words a minute.
12 books to read next
How long each takes
Getting the Love You Want 5.9 h 
When He's Married to Mom 5.1 h 
Light His Fire 4.1 h 
Journey of the Heart 4.2 h 
The Will to Change 3.5 h 
This Is Me Letting You Go 2.3 h 
Hold Me Tight 5.9 h 
Monogamy 2.4 h 
Men Who Can't Love 5.9 h 
Wired for Love 3.5 h 
The Truth 8.2 h 
Decision Making 9.0 h Bar height shows length. Estimated at 250 words a minute.