This book's philosophy can apply to anyone so long as they are really invested in trying to implement change in their life. When I first looked at Sean Whalen's book, my first thought was "Damn that a rather small book". Mr. Whalen is quick to address to point of his book, CORE4, and how he turned around his life by doing so. He doesn't mince words either when he elaborates on the different facets of this philosophy. After finishing the book, I came to realize it's written in a passionate, frank, and perhaps even offensive tone that is quite common throughout his Facebook posts.
@stackin