No buying the book won't change the world, however buying this book and applying the seven easy to follow principles will change you and it is a guarantee when you change the whole world around you will somehow magically seem to change.
Johnny and Jimmy, the main characters who live in a nomadic hunting and gathering society. Johnny begins to tire of the nomaditc lifestyle. He dreams of a better life where he no longer has to live a hand to mouth existence. So Johnny sets out to find a better way.
In the process of finding a better way for his family Johnny discovers farming and then civilization springs up around his farm. Seven key principles are extrapolated from the story of Johnny and Jimmy. Jimmy by the way can't be bothered with this "finding a better way" because he believes he is far too busy drawing pictures on the cave walls and retelling the stories of the days hunt.
"This book drives home the reality that belief in yourself, your ideas, and the willingness to act on your own vision have been tested in the crucible of real life experience since civilization began"