I've always been a big believer in self-education and continuing education. So when I came across this book on the DefCon recommended reading list it seemed like an obvious choice for me. Well, honestly I bought or added to my wish list everything under Computer Reference.
Anyway, if you are interested enough to by the book you can safely skip the first two chapters. They are basically just a lot of qualifying and self-aggrandizing. However, I do recommend giving this a read. I think you'd be hard-pressed to not learn something about yourself or somebody you know. Hopefully you'll also be inspired to continue your life-long learning journey.
I picked up the hard-cover on a deep discount, but if you like paperback or digital they are a bit more reasonable. It is a rather short book.