I had always wanted to know what a knuckleball was, and why not that many pitchers throw them. This book was worthwhile in explaining that. It is kind of a "spiritual discipline via the knuckleball" approach to life.The book is not terribly well written, however R.A.'s life is interesting and he shows great perseverance against great odds and many setbacks. The section where he swims (or tries to swim) across the Missouri River was fascinating. He goes into the river arrogant and sure of his ability to swim the river. He struggles in the river and almost drowns. When he emerges, he has a renewed thankfulness for being alive. It changes his attitude quite literally, and interestingly enough his pitching is transformed as well.