This is part leadership manual, part biography. Rudy Giuliani shares the leadership principles the guided him through his twelve years as mayor of New York City.

The chapters alternate between leadership lessons and the events of September 11, 2001. Giuliani takes you with him, like you’re a member of his entourage, as the day unfolds, the impact is assessed, and the plan to respond and rebuild is formed. I read this in 2003, not quite two years after, and I enjoyed the behind-the-scenes look at how New York stepped up when it was put at the center of the world stage.

One of the key lessons I took away is that it’s okay to focus on numbers. It’s not cold and disinterested, it’s how you step back and focus on results instead of the actions taken to get the results. This is a critical distinction to make if you’re going to delegate anything to someone else.