Books like Geomorphology
B. W. Sparks
Geomorphology is 451 pages, about 8 hours 16 minutes at 250 words a minute.
6 books to read next
How long each takes
Principles of Geomorphology 11.2 h 
Physical Geography 11.2 h 
Physical Geography 15.0 h 
Geosystems 12.1 h 
Exercises in Physical Geology 4.4 h 
Physical Geography 10.8 h Bar height shows length. Estimated at 250 words a minute.