Winner in the category of extremely-long-and-wished-it-was-longer biography:
The Power Broker: Robert Moses and the Fall of New York
http://www.amazon.com/books/dp/0394720245
Unfortunately, the above is also in the category of great books not available as eBooks.
This criminology should-be-classic
is available as an eBook:
Don't Shoot: One Man, A Street Fellowship, and the End of Violence in Inner-City America
http://www.amazon.com/Dont-Shoot-Fel.../dp/1608192644
A great eBook title -- just please don't try the techniques on this board!:
Spy the Lie: Former CIA Officers Teach You How to Detect Deception
http://store.kobobooks.com/en-US/Books/spy-the-lie