Books like American Government
Theodore J. Lowi
American Government is 586 pages, about 10 hours 45 minutes at 250 words a minute.
6 books to read next
How long each takes
American Civics 10.6 h 
Thomas Jefferson 6.2 h 
Ethnic Groups Worldwide 8.0 h 
The Cambridge Encyclopedia of the English Language 9.0 h 
Minecraft: Exploded Builds: Medieval Fortress 1.5 h 
Jackaroo 6.6 h Bar height shows length. Estimated at 250 words a minute.