Books like Edison a Biography
Matthew Josephson, M. Josephson
Edison a Biography is 511 pages, about 9 hours 22 minutes at 250 words a minute.
12 books to read next
How long each takes
Elon Musk 7.3 h 
My Inventions 2.0 h 
The Periodic Table 4.4 h 
PiHKAL 18.2 h 
Benjamin Franklin 10.8 h 
Químicos y Química 6.2 h 
The Money Masters 5.6 h 
Obsessive Genius 5.3 h 
The Alchemy of Air 6.0 h 
TiHKAL 14.7 h 
Marie Curie 9.3 h 
Tesla 5.9 h Bar height shows length. Estimated at 250 words a minute.