Books like Rules for a Knight
Ethan Hawke
Rules for a Knight is 172 pages, about 3 hours 9 minutes at 250 words a minute.
12 books to read next
How long each takes
The Monk Who Sold His Ferrari 4.0 h 
The Alchemist 3.6 h 
O Aleph 5.6 h 
The Mountain Is You 4.6 h 
Lilith 5.0 h 
The 4-Hour Workweek 6.3 h 
The Goldfinch 15.8 h 
Ishmael 4.8 h 
A Knight of the Seven Kingdoms 6.5 h 
Tools of Titans 12.9 h 
Veronika Decides to Die 4.0 h 
Life's Amazing Secrets 4.7 h Bar height shows length. Estimated at 250 words a minute.