Books like Horizons
Michael A. Seeds, Michael W. Guidry, Kevin Lee
Horizons is 484 pages, about 8 hours 52 minutes at 250 words a minute.
12 books to read next
How long each takes
21St Century Astronomy 12.0 h 
Astronomy Today 14.1 h 
The Cosmic Perspective 15.1 h 
Cosmos 6.5 h 
Astronomy 12.7 h 
The Physical Universe 13.0 h 
The End of Everything 4.4 h 
Astronomy 10.1 h 
A Complete Manual of Amateur Astronomy 4.8 h 
Biology 23.1 h 
Astronomy 11.7 h 
The Disordered Cosmos 5.9 h Bar height shows length. Estimated at 250 words a minute.