Claude M. Bristol was an investment banker, a lawyer, a journalist, and a self-help expert. Other books by Bristol include TNT: It Rocks the Earth, TNT: The Power Within You, and The Magic of Believing for Young People. All his book are about helping people use the power of the mind to create their own destiny. Claude M. Bristol was a journalist for several years, working for a big city newspaper. He discovered the philosophy of mind power during the course of his work, as he met several people of many sects, and read many books on religion and philosophy. After serving in the army during the First World War, he decided to use this power to create a wealthy future for himself. He succeeded and later shared his philosophy with a wide audience through his many books.