I thought this book was incredibly good. I have been using the principles for a few years now: "just do" tasks that take less than 2 minutes right away; write everything down so "to do" lists don't take up mental/emotional energy, and they have saved my sanity. I finally finished the book, so you definitely don't need to read it all to start working. It's really a breath of fresh air to stop carrying around the things you need to get done in your head.