Books like Disobedience and Democracy
Howard Zinn
Disobedience and Democracy is 124 pages, about 2 hours 16 minutes at 250 words a minute.
6 books to read next
How long each takes
Civil Disobedience 35 min 
No Is Not Enough 5.3 h 
The Writings of Henry David Thoreau 22 min 
Crises of the Republic 4.4 h 
Waging Nonviolent Struggle 34 min 
Walden, or, Life in the Woods / On the Duty of Civil Disobedience 4.6 h Bar height shows length. Estimated at 250 words a minute.