What to read after THE POWER OF CONCENTRATION?

This eBook edition of "The Power of Concentration" has been formatted to the highest digital standards and adjusted for readability on all devices. William Walker Atkinson (1862-1932) was an attorney, merchant, publisher, and author, as well as an occultist and an American pioneer of the New Thought movement. He is also known to have been the author of the pseudonymous works attributed to Theron Q. Dumont and Yogi Ramacharaka. Excerpt: "We all know that in order to accomplish a certain thing we must concentrate. It is of the utmost value to learn how to concentrate. To make a success of anything you must be able to concentrate your entire thought upon the idea you are working out. Do not become discouraged, if you are unable to hold your thought on the subject very long at first. There are very few that can. It seems a peculiar fact that it is easier to concentrate on something that is not good for us, than on something that is beneficial. This tendency is overcome when we learn to concentrate consciously. If you will just practice a few concentration exercises each day you will find you will soon develop this wonderful power."