Karno's first book changed my life. After reading the first couple chapters, I had to put it down to go outside and go running that minute. I was soon doing mar

Karno's first book changed my life. After reading the first couple chapters, I had to put it down to go outside and go running that minute. I was soon doing marathons and ultramarathons, and I am still setting new personal records. To put his book into three words: determination equals fun.