'Calm' looks like an interesting book. It's about teaching yourself to stop worrying about things and get on with your life.
It's true that people worry too much about what others think about them. I used to go joggling at 4 a.m. in a park so no one would see me. Eventually, I discovered that people were entertained by joggling and there was nothing to be afraid of. I thought young kids would throw rocks at me, but instead they cheered. It was a surreal contrast from my 4 a.m. "closet" joggling when I found myself joggling the Boston Marathon last year in front of one million spectators (and 17,000 runners).
So the question remains: What do I buy with my new found joggling fortunes?