Gonna take off half a star for the preachiness. I heard about this in a finance group and I'm so glad I was able to to read this. It goes really fast but asks a lot of sobering questions:
Words you are waiting to hear from people in your life, words you need to speak to people in your life. What was your biggest loss in your 20s? What's a major event that you witnessed?(9/11) 

He posits the 4 q of life: 0-20, 21-40, 41-60, 61-80 and makes you plainly asses where you're at, how you're living, if that is aligned with your goals and hopes for your one wicked life. I really enjoyed this!