El Poder Oculto y Otros Escritos sobre Ciencia Mental. La versi�n original de este libro fue publicada en ingl�s el a�o 1921. El material contenido en este volumen fue seleccionado de manuscritos in�ditos y art�culos de revistas del Gran Cient�fico Mental Thomas Troward.
Thomas Troward was a judge in British-administered India, where he made a personal study of the teachings of Christianity, Islam, Hinduism, and Buddhism. After retiring from the bench in 1896, he applied his legalistic mind to matters of philosophy, and began lecturing and publishing on "Mental Science," eventually becoming president of the International New Thought Alliance.