"The Yogi Philosophy may be divided into several great branches, or fields. What is known as "Gnani Yoga" deals with the scientific and intellectual knowing of the great questions regarding Life and what lies back of Life—the Riddle of the Universe." 'A series of Lessons in Gnani Yoga' is a treatise on this branch of Yoga by the author Walter Atkinson. It deals with topics such as: "the Omnipresent Life", "The Creative Will", "Cosmic Evolution" and "The Ascent of Man."