Yogi Ramacharaka was the pen name of William Walker Atkinson (1862–1932), an American writer and occultist who played a key role in introducing Eastern philosophy, yoga, and Vedanta to Western audiences. Under this pseudonym, he wrote books such as The Science of Breath and The Hindu-Yogi Science of Mental Control, blending Hindu mysticism with Western New Thought principles. His works emphasize pranayama, meditation, and spiritual self-mastery, aiming to guide readers toward higher consciousness and inner peace. Though not an actual Indian yogi, his writings helped popularize yogic philosophy and esoteric spirituality in the early 20th century.