The list author says: "As a father, I usually feel inadequate. So much in the world and so little time to teach my sons how to make it. When they were younger, I started this list with the idea if I fell off a cliff, where could they find the most essential wisdom that I would want them to know in order to have a good life. I've added changed this list very little over the past years. But, I do tweak it occasionally as I discover new a better ways to say the lessons I'm still trying to learn at age 50. I hope you find wisdom in these books as helpful as have I."