Theron Q. Dumont was one of the many pseudonyms of American occultist, author, and pioneer of the New Thought movement William Walker Atkinson. A central tenet of the New Thought movement is the importance of thoughts in creating real change in person’s physical, emotional, and financial life. Negative thoughts will attract negative events and negative people and positive thoughts will bring about positive outcomes. In “The Power of Concentration” the author focuses on the importance of concentrating one’s thoughts in cultivating a positive mental attitude. In a series of twenty lessons “The Power of Concentration” is a book intended to help the reader increase their powers of concentration. Being able to concentrate effectively is a critical element of success, as the author writes, “Success is assured when you are able to concentrate for you are then able to utilize for your good all constructive thoughts and shut out all the destructive ones. It is of the greatest value to be able to think only that which will be beneficial.”