Books like The Professional
Robert B. Parker
The Professional is 289 pages, about 5 hours 18 minutes at 250 words a minute.
12 books to read next
How long each takes
Lethal White 12.0 h 
One, Two, Buckle My Shoe 3.9 h 
Play Dirty 9.3 h 
Presumed Guilty 4.9 h 
The Case of the Curious Bride 4.0 h 
Gathering Prey 8.2 h 
Strangers in Death 7.3 h 
The Sixth Man 8.3 h 
Private India 7.2 h 
Six Suspects 8.6 h 
Private Paris 8.2 h 
Akelarre - 1. Edicion 7.7 h Bar height shows length. Estimated at 250 words a minute.