Books like Rocket Ship Galileo
Robert A. Heinlein
Rocket Ship Galileo is 200 pages, about 3 hours 40 minutes at 250 words a minute.
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How long each takes
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The Star Trek Reader III 7.5 h 
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Star Wars - Milennium Falcon 7.0 h 
The Invasion 3.5 h 
House of Stairs 3.1 h 
Lego City 1.5 h 
The Visitor 3.5 h 
Robot Visions 9.0 h 
The Planet of Terror 52 min 
The Time Traders 3.2 h Bar height shows length. Estimated at 250 words a minute.