Everything that is in action must necessarily work through definite laws. And as the mind is in constant action, alternating its actions at almost every turn of thought or feeling, it is evident that a vast number of laws are employed by the mental process. To know how the mind works, therefore, we must know something about these laws. In these pages the most important of the mental and metaphysical laws known to date are considered from every possible viewpoint, the principal object being to ascertain their real nature as well as their power and use. In addition, a number of psychological ideas are presented that will throw light both on the inner and the outer workings of the mind. This is the annotated edition including an essay about the author and the New Thought Movement in Cincinnati, which he founded.