The book "Secrets of the Chemical Industry" is a chilling account of the dark history of chemical companies in the United States. The author exposes the horrifying experiments that were conducted on inmates at Holmesburg prison, including Leotis Jones, who was used as a guinea pig by multinational chemical companies for various tests. The book reveals that Dow Chemical went to great lengths to keep their experiments at Holmesburg a secret, even paying Jones for his silence. Dow Chemical is the leading manufacturer of plastics in the world and the third-largest manufacturer of pesticides, with an annual turnover of 48 billion dollars and 50,000 employees worldwide.