According to this short-and-sweet little book, runners do three things wrong: they run too far, they run too fast, and they run too far and too fast too soon. The premise of this entire book is that running needn't be sprinting and that running shouldn't demand full exertion. While running can include wind-sprints and suicides, it shouldn't because 70% of runners injure themselves every year and very few runners who add running to their new year's resolution normalize running into their daily habits. Running shouldn't be a punishment, it should be a gift. It should be doing something someone looks forward to—and not just to enable them to eat more donuts. It should be a relaxing way to "spend time in a nice way." Here's how you do it (spoiler): "run as slowly as you can while still looking as if you are running." And that's what I love about this book. Because this is what I have always been about. I don't mind if I ever come away from running huffing and puffing, full stop.