Books like Disappointment with God
Philip Yancey
Disappointment with God is 327 pages, about 6 hours at 250 words a minute.
12 books to read next
How long each takes
Knowing God Intimately 5.9 h 
The Ragamuffin Gospel 4.2 h 
Experiencing God 5.3 h 
Confessions 6.4 h 
The God Chasers 4.3 h 
The Case for God 7.7 h 
The Pursuit of God 1.7 h 
Hearing God 4.2 h 
The Fear of the Lord 3.6 h 
The Knowledge of the Holy 2.8 h 
Waiting for God 3.5 h 
The Cry of the Soul 5.0 h Bar height shows length. Estimated at 250 words a minute.