“It is not enough merely to have a sound mind—one must also learn how to use it, if he would become mentally efficient.” —ATKINSON
William Walker Atkinson was a merchant, publisher, and author, as well as an occultist and an American pioneer of the New Thought movement. This book (Thought Vibration-The Law of Attraction in the Thought World) is a series of lessons in psychic influence, thought-force, law of attraction, life force, and practical mental science. These lessons created a sensation and exerted a wonderful influence upon the lives of those who applied their principles. It’s a practical guide to the psychology of the mind that you can apply to your everyday life.
Excerpt: “The Universe is governed by Law—one great Law. Its manifestations are multiform, but viewed from the Ultimate there is but one Law. We are familiar with some of its manifestations, but are almost totally ignorant of  certain others. Still we are learning a little more every day—the veil is being gradually lifted. 
We speak learnedly of the Law of Gravitation, but ignore that equally wonderful manifestation, The Law of Attraction in the Thought World. We are familiar with that wonderful manifestation of Law which draws and holds together the atoms of which matter is composed—we recognize the power of the law that attracts bodies to the earth, that holds the circling worlds in their places, but we close our eyes to the mighty law that draws to us the things we desire or fear, that makes or mars our lives. 
When we come to see that Thought is a force—a manifestation of energy— having a magnet-like power of attraction, we will begin to understand the why and wherefore of many things that have heretofore seemed dark to us. 
There is no study that will so well repay the student for his time and trouble as the study of the workings of this mighty law of the world of Thought—the Law of Attraction.”