This is by far the best book I have ever owned. You do not read this book, you study it. There is no way to grasp all the information in this book in one reading. It is a complete "hot to" book. It tells you how to do research. It tells you how to do recovery. It tells you how to preserve different items. It is an outstanding book. It is #1 in my collection of over 200 treasure hunting books.
以下为对购买帮助不大的评价