Books like Tides of Light
Gregory Benford
Tides of Light is 371 pages, about 6 hours 48 minutes at 250 words a minute.
6 books to read next
How long each takes
Children of the Mind 7.0 h 
Ghosts of Onyx 7.0 h 
The Flood 6.5 h 
Halo 6.3 h 
Dark Intelligence 7.6 h 
The Line of Polity 7.8 h Bar height shows length. Estimated at 250 words a minute.