leadership books for boys (and other humans)

Someone recently asked me to prepare a little list of books for their high school boys to read about leadership. I was surprisingly stumped, since my focus is often on girls and women. I figured that the first order of business was that it had to be gripping stuff. And then it had to be about leadership in some way. So, after some thought, here's my list, and I figure these books are worth reading by more than "just" high school boys.