William Walker Atkinson (December 5, 1862 – November 22, 1932) was an American attorney, publisher, writer and a leader of the New Thought movement. Although he is largely forgotten, he wrote over 100 books under his name and a variety of pseudonyms; many have been continuously in print since the early 1900’s.  He was born in Baltimore, married at age 26, and pursued a successful business and legal career until suffering a complete breakdown in the late 1880’s. He found healing and vitality through the emerging discipline of New Thought, and started writing about it. He moved to Chicago, a center of the New Thought movement, and became editor and publisher of Suggestion, New Thought, and Advanced Thought magazines. He then teamed up with publisher Sydney Flower to publish most his books under various imprints of the Psychic Research and New Thought Publishing Company. He wrote 13 books on yoga and Indian philosophy using the pseudonym Yogi Ramacharaka, taking the name from a spiritual teacher who lived from 1799 until the late 19^th century.  Other pseudonyms include Theron Q. Dumont and Swami Panchadasi.