Don Miguel Ruiz is a renowned spiritual teacher and internationally bestselling author, most famous for his transformative work, The Four Agreements. A former neurosurgeon, Ruiz pivoted to spiritual writing following a near-fatal accident, drawing authority from his ancestral Toltec lineage of healers. His teachings bridge ancient wisdom and modern philosophy to help individuals achieve personal freedom. Listed among the world’s most spiritually influential living people, his works have sold over 16 million copies worldwide.