For fans of endurance events like cycling or running, this is fascinating. Not so much for anyone else, I'm guessing. Written by a man in his 20s, about his personal experience with extreme endurance events and sports and family and personal struggles. Sadly, the author died young, cancer, in his 30s, in 2018. Most of the book is the author in his 20s when doing most of the events, like riding across Canada or biking from Alaska to the southern tip of South America or other similar rides. He is fairly hard on himself and his father, from whom he seems to have picked up some unpleasant "tough love" characteristics. He's also tough on others, in particular one friend that drove a support vehicle for him for 4 and 1/2 months--he says negative things about him publicly and apparently dumps him after the ride. The book is about 450 pages, and probably should have been about 300. It is filled with detailed accounts that should have been edited down, like for example descriptions of his saddle sores. It's also filled with cliches and other unnecessary writing, so avoid it unless you are keen on ultra long-distance cycling.