This book is the frank account of my experiences in the art of healing by hypnosis and an attempt to explain, in language as non-technical as possible, how and why the subconscious can produce such results. Hypnosis is a scientific fact and it is not possible to predict where new and further research will lead us. It is impossible for the human mind to touch the bottom of this matter, for the subconscious is the very essence of life and to understand it intimately would perhaps be like unraveling the secret of death and gaining dominion over it. But this book is not to that extent speculative, for I have deliberately kept to the facts of my own experience and have endeavored to show how this great science can be easily employed by everyone: men, women and children.