I wouldn't go so far as to say this is the best book on leadership. From a army standpoint, being a ranger is a big deal. Anybody aspiring to be an outstanding military officer should so through a program such as the Rangers, Seals, Special Forces, Green Beret, etc.. Programs such as these certainly make or break an individual.
This book gives the perspective of 10 men who completed the Ranger program and their struggles to overcome their individual weaknesses. One of the Rangers spotlighted, Tex Turner adopted the statement: "As an officer, you are either a ranger or an excuse." The author embellishes this concept: "You are either wealthy or an excuse." "You are either healthy or an excuse." This simple saying can apply to any area of ones life. Am I doing all I can--or am I just making excuses.
I highly recommend this book. My only reservations were the authors abundant use of the F-bomb. True, it adds to the reality of the situation these men went through, but shows a lack of professionalism as a businessman/author. It is one minor aspect which would keep me from suggesting it to young readers. Also, from a business perspective, this book isn't a leader in leadership books. All in all, this book is exciting reading. It is well written. Many times I actually visualized myself in similar situations. Don't make excuses. Read this book.