Books like Foundation and Earth
Isaac Asimov
Foundation and Earth is 503 pages, about 9 hours 13 minutes at 250 words a minute.
12 books to read next
How long each takes
Contact 7.9 h 
Anathem 17.2 h 
A Fire Upon the Deep 11.1 h 
Altered Carbon 8.8 h 
2010, Odyssey Two 5.6 h 
A Deepness in the Sky 14.5 h 
Look to Windward 6.8 h 
Rama II 9.1 h 
Blue Mars 14.4 h 
Fahrenheit 451 3.5 h 
Marooned in Realtime 5.3 h 
The Hitchhiker's Guide to the Galaxy 4.0 h Bar height shows length. Estimated at 250 words a minute.