Gallop to Freedom: Training Horses with Our Six Golden Principles A very readable book that will have horse owners see training in a new light. Definitely a favourite on my bookshelf. I've posted a full review: http://horses.about.com/od/productandbookreviews/gr/galloptofreedom.htm
Half Broke Horses: A True-Life Novel Although this book has been compared to McCourt's memoirs, I didn't find it quite as authentic. However, it is a very enjoyable read and I finished it cover to cover in only a few days.