Instruct: Classify the given review as either positive or negative.
Query: Outstanding coverage of secret technologies kept Hidden

Excellent book on a very mysterious and captivating subject. You will find out what the government does not want you to know. Telsa was a geneoius born before his time. He produced what no man could produce at the time Steath technology. Learn about the saga and the power mongers who tried to use the power. Learn about how Telsa technology and others are being used by our government to produce Super Machines Never before dreamed of by man. Take the Book and join in the adventure into the future.