William Walker Atkinson

William Walker Atkinson (December 5, 1862 – November 22, 1932) was an American occult author and publisher, one of the driving forces behind the early New Thought, having written prolifically under his own name and pseudonyms, including Magus Incognito, Swami Panchadasi, Swami Bhakta Vishita, Theron Q. Dumont, and Yogi Ramacharaka.

as William Walker Atkinson

 * "The Law of the New Thought: A Study of Fundamental Principles & Their Application" (1902)
 * "Self-Healing by Thought Force" (1907)
 * "The Secret of Mental Magic: A Course of Seven Lessons" (1907)
 * "Practical Mind-Reading" (1907)
 * "Reincarnation and the Law of Karma" (1908)
 * "Practical Mental Influence" (1908)
 * "Practical New Thought: Several Things that Have Helped People" (1911)
 * "Your Mind and How to Use It: A Manual of Practical Psychology" (1911)
 * "The Psychology of Salesmanship" (1912)

as Yogi Ramacharaka

 * "The Hindu Yogi Science of Breath" (1903)
 * "Fourteen Lessons in Yogi Philosophy and Oriental Occultism" (1903)
 * "Advanced Course in Yogi Philosophy and Oriental Occultism" (1904)
 * "Hatha Yoga, or The Yogi Philosophy of Physical Well-being" (1904)
 * "A Series of Lessons in Raja Yoga" (1905)
 * "The Science of Psychic Healing" (1906)
 * "Lessons in Gnani Yoga, the Yoga of Wisdom" (1906)
 * "Raja Yoga or Mental Development; A Series of Lessons in Raja Yoga" (1906)
 * "The Spirit of the Upanishads or the Aphorisms of the Wise" (1907)
 * "Bhagavad Gita or The Message of the Master" (1907)
 * "Mystic Christianity or The Teachings of the Master" (1908)
 * "The Inner Teachings of the Philosophies and Religions of India" (1909)
 * "The Life Beyond Death" (1909)

as Swami Bhakta Vishita

 * "Genuine Mediumship or The Invisible Powers" (1910)

as Swami Panchadasi

 * "The Human Aura: Astral Colors and Thought Forms" (1912)
 * "The Astral Plane: Its Scenes, Dwellers, and Phenomena" (1915)
 * "Clairvoyance and Occult Powers" (1916)

as Theron Q. Dumont

 * "Master Mind or The Key To Mental Power Development And Efficiency"
 * "Mental Therapeutics; Or, Just how to Heal One-self and Others" (1916)
 * "The Power of Concentration"

as Magus Incognito

 * "The Secret Doctrines of the Rosicrucians" (1918)

Additional works
In addition to his extensive catalogue of books and pamphlets, William Walker Atkinson was also editor of at least three magazines: "Suggestion, a New Thought Journal" (1900–1901); "New Thought" (1901–1905); and "Advanced Thought" (1906–1916).