If this book is not the most important piece of writing in the last 1600 years, then it is worthless trash; it's either pure gold or fool's gold. There is no middle ground. The author presents it as finest gold; its readers must determine if it is gold or fool's gold for them. The book explores how truth influences freedom. It contends that any untruth deliberately told is told to control the actions of others. Liars are controllers and anyone who willingly or unwillingly does what others want him to do is effectively a slave of the ones who control him. The issue is freedom versus slavery; that slavery can be avoided only by those who know and act upon the truth. This is not a perfect book, nor is it an easy read. It is an instruction manual for those willing to do the work of learning how to find truth and live free. Some have said it is three books in one and that it is. The first two chapters introduce propaganda as the method of control and suggest ways to protect against it. Chapters III through VI introduce the author's approach to extracting truth from a mass of information. Chapter VII consists of the author's musing about what it would be like if all lived by the truth they find. One of this book's imperfections comes from the author's unawareness of the role of psychological manipulation in controlling masses leading to his not addressing that important aspect of propaganda. And he did not know it was Augustine 1600 years ago, not Calvin 600 years ago, who introduced serious errors into Christian teaching and preaching. Though it is not perfect, it does present an unimpeachable method for extracting truth from a mass of evidence. The price is low, the potential for gain is great, all who would be free are encouraged to spend its small price for what may be for them "a treasure hidden in a field," "a pearl of great price."