Books That Changed My Life, Part II

This post is part two in a series. Part one is here!
If you’re not reading nonfiction, I hope I can convince you to start. Here are four more books that have made a major difference in my life!
Getting Things Done
Most people feel best about their work the week before their vacation, but it’s not because of the vacation itself. What do you do the last week before you leave on a big trip? You clean up, close up, clarify, and renegotiate all your agreements with yourself and others. I just suggest that you do this weekly instead of yearly. — David Allen