Books like God Calling
A. J. Russell
God Calling is 256 pages, about 4 hours 42 minutes at 250 words a minute.
6 books to read next
How long each takes
Morning and Evening Daily Devotions 13.7 h 
Lives of the Saints 7.5 h 
Simple Abundance 9.7 h 
Growing Strong in the Seasons of Life 2.8 h 
Strength for Today 7.3 h 
Morning by Morning 7.0 h Bar height shows length. Estimated at 250 words a minute.