The book is very easy reading. He has had a very interesting life. His information is very right on as near as I can tell. I have had several types of farm animals in my lifetime, still have cows. I knew about selenium and copper. I didn't know the minerals are as important as they are. I have learned alot so far and have more to read. At the back of the book it describes health problems, cause and some solutions. But I think his attitude of prevention is better than the cure is a good way of looking at things.