Books like Understanding Earth
John Grotzinger, Thomas H. Jordan
Understanding Earth is 784 pages, about 14 hours 22 minutes at 250 words a minute.
6 books to read next
How long each takes
Canadian Professional Engineering and Geoscience 7.9 h 
Geomorphology 11.1 h 
Foundations of Earth Science 9.7 h 
Earth 13.6 h 
A Brief History of Earth 5.0 h 
Earth Science 16.4 h Bar height shows length. Estimated at 250 words a minute.