The Power of Concentration is course of lessons intended to teach the reader how to concentrate, with the belief that the person who is able to concentrate can better utilize constructive thoughts and shut out the destructive ones.

"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 destructive ones. It is of the greatest value to be able to think only that which will be beneficial."

The chapters are:

1. Concentration Finds the Way
2. The Self-Mastery: Self-Directing Power of Concentration
3. How to Gain what You Want through Concentration
4. Concentration: The Silent Force that Produces Results in All Business
5. How Concentrated Thought Links All Humanity Together
6. The Training of the Will to Do
7. The Concentrated Mental Demand
8. Concentration Gives Mental Poise
9. Concentration Can Overcome Bad Habits
10. Business Results Gained through Concentration
11. Concentrate on Courage
12. Concentrate on Wealth
13. You Can Concentrate, But Will You?
14. Art of Concentrating with Practical Exercise
15. Concentrate So You Will Not Forget
16. How Concentration Can Fulfill Your Desire
17. Ideals Develop by Concentration
18. Mental Control Through Concentration
19. Concentrated Will Development
20. Concentration Reviewed