William Walker Atkinson (1862-1932) was a multifaceted American figure, known as an attorney, publisher, and author, and a significant contributor to the New Thought movement. He is widely believed to be the author behind pseudonymous works attributed to Yogi Ramacharaka and Theron Q. Dumont. Atkinson penned an estimated 100 books, primarily in the latter part of his life, and his writings have maintained continuous publication since the turn of the 20th century. His career took a pivotal turn after experiencing a personal breakdown, leading him to discover and embrace the principles of New Thought, which he credited with restoring his health and prosperity.

Atkinson's engagement with the New Thought movement intensified in Chicago around 1900, where he collaborated closely with Dr. Herbert A. Parkyn. Under Parkyn's guidance at the Chicago School of Psychology, Atkinson studied suggestive therapeutics and contributed significantly to Parkyn's magazine, 'Suggestion.' His early writings for the journal, initially unsigned, began integrating metaphysical interpretations of mental sciences. This period marked the beginning of his prolific literary output, laying the groundwork for his influential teachings on personal magnetism, thought-force, and mental control.

Born in Baltimore in 1862, William Walker Atkinson began his career in business before becoming an attorney in Pennsylvania. A severe personal and financial crisis in his legal career prompted him to seek alternative healing methods. In 1900, he discovered suggestive therapeutics and the principles of New Thought, which he credited with his recovery and subsequent success. This transformative experience led him to dedicate himself to the study and promotion of these ideas, marking a significant shift in his life's path.

Atkinson's immersion into the New Thought movement deepened through his association with Dr. Herbert A. Parkyn in Chicago. After seeking treatment at Parkyn's clinic, Atkinson became a student and collaborator, contributing to Parkyn's publication, 'Suggestion.' His initial, unsigned contributions gradually introduced a more metaphysical perspective into the journal. Atkinson's legal background and writing skills were instrumental in translating Parkyn's concepts of suggestive therapeutics into accessible teachings, focusing on self-culture and mental discipline. This collaboration laid the foundation for his extensive literary work in metaphysical studies.

Atkinson's influence grew as he took on editorial roles, including at 'New Thought' magazine from 1901 to 1905. During this period, he also founded his own 'Success Circle' and 'Atkinson School of Mental Science.' He was a master of using pseudonyms and creating distinct authorial personas, such as Yogi Ramacharaka and Theron Q. Dumont. His publishing ventures, including 'Advanced Thought' magazine, were often managed through interconnected companies, facilitating the release of numerous books under various names, all contributing to the dissemination of New Thought principles.

William Walker Atkinson's prolific output, estimated at around 100 books, cemented his position as a central figure in the New Thought movement. His works, consistently in print since 1900, covered a wide range of topics including mental science, psychic influence, and practical psychology. Despite facing scrutiny from the U.S. Post Office Department in 1919 regarding his publishing practices, his influence persisted. He was recognized in publications like 'Who's Who in America,' underscoring his significant impact on metaphysical and esoteric literature.