Basically, he uses Crazy Horse and other significant Lakota leaders as a basis and summarizes true leadership in four principles:
--Know Your Friends
--Know the Enemy
--Lead the Way
Every effective leadership approach has the same basic principles, although they are characterized in different ways. Self awareness is the key - know yourself. Networking and communication are essential - know your friends. Dealing with opposition and remaining true in the face of adversity make an integral leader - know your enemies. And of course, you have to move forward when you know it is right - lead the way.
I especially liked the chapter on knowing your enemies - he does not limit this to people, but points out that sometimes our enemies can be less tangible, like racism or apathy. A leader has to dig in and understand their enemy if they are going to effectively engage it.
This is a short and simple book, and just as good as his other books. My only negative comment is that he goes off on political tangents a couple of times which are relatively irrelevant, but I certainly don't desire to deprive a man of his opinion, and I see his perspective and comprehend him a little better through hearing what he has to say.