Books like The Sword and the Shield
Christopher M. Andrew
The Sword and the Shield is 700 pages, about 12 hours 50 minutes at 250 words a minute.
12 books to read next
How long each takes
Kgb/CIA 3.5 h 
First Person 3.9 h 
Putin's People 8.7 h 
KGB 15.3 h 
Spet︠s︡operat︠s︡ii 9.3 h 
The Great Game 10.5 h Sin of National Conscience 8.3 h 
The State Within a State 7.4 h 
The Hunt for Red October 8.8 h 
Gideon's Spies 7.3 h 
Casino Royale 3.5 h 
The Matarese Circle 11.0 h Bar height shows length. Estimated at 250 words a minute.