When I bought my Mastiff I really hadn't a clue about anything health wise. All I knew was that their disposition was wonderful. I purchased this book along with two other more expensive books and spent more time reading this one than the other two. This is a very well written and in depth book. The author obviously did research and/or knew about the breed. The book is my refrence guide whenever I have a question that I need answered. I would definately say that you will be getting more than you pay for if you buy this book! It tells you everything from the history, to selecting a puppy, nutrition, diseases, training, breeding, all the way to the end of a life for one. It has some beautiful pictures to show you what a Mastiff looks like from the beginning till the heartbreaking end. I fully recommend this book above any that I have read so far!