Theron Q. Dumont 
The Power Of Concentration [EPUB ebook] 

It is of the utmost value to learn how to concentrate. To make the greatest success of anything you must be able to concentrate your entire thought upon the idea you are working on. The person that is able to concentrate utilizes all constructive thoughts and shuts out all destructive ones. The greatest man would accomplish nothing if he lacked concentration.
This book contains 20 lessons that teach you exactly how to concentrate even in the most tricky situations.
Contents:

Introductory
Lesson I. Concentration Finds The Way
Lesson II. The Self-Mastery: Self-Direction Power Of Concentration
Lesson III. How To Gain What You Want Through Concentration
Lesson IV. Concentration, The Silent Force That Produces Results In All Business
Lesson V. How Concentrated Thought Links All Humanity Together
Lesson VI. The Training Of The Will To Do
Lesson VII. The Concentrated Mental Demand
Lesson VIII. Concentration Gives Mental Poise
Lesson IX. Concentration Can Overcome Bad Habits
Lesson X. Business Results Through Concentration
Lesson XI. Concentrate On Courage
Lesson XII. Concentrate On Wealth
Lesson XIII. You Can Concentrate, But Will You?
Lesson XIV. The Art Of Concentrating By Means Of Practical Exercises
Lesson XV. Concentrate So You Will Not Forget
Lesson XVI. How Concentration Can Fulfill Your Desire
Lesson XVII. Ideals Developed By Concentration
Lesson XVIII. Mental Control Through Creation
Lesson XIX. A Concentrated Will Development
Lesson XX. Concentration Reviewed