Joseph Murphy is an Irish-American author and New Thought minister widely regarded as one of the most influential voices in the study of the subconscious mind. Born in County Cork, Ireland, he trained as a pharmacist before immigrating to the United States, where he went on to study psychology, law, and theology, eventually becoming a minister within the Religious Science movement. He rose to international acclaim with his bestselling book The Power of Your Subconscious Mind, published in 1963, followed by works including The Amazing Laws of Cosmic Mind Power and Believe in Yourself. Drawing on a blend of psychology, philosophy, and New Thought spirituality, his writing centered on the idea that the subconscious mind could be deliberately directed through belief, visualization, and affirmative prayer to shape one's health, wealth, and relationships. The Power of Your Subconscious Mind has sold millions of copies and remains a foundational text within the self-help and New Thought genres, influencing generations of later authors in the field. Known for his accessible, faith-inflected approach to the power of the mind, Murphy's work continues to shape modern self-help and New Thought writing and inspire readers across the world.