In this illuminating collection, René Guénon brings his unrivaled insight into the symbolic and initiatic foundations of two of the West’s most enigmatic traditional organizations: Freemasonry and the Compagnonnage. Through a series of penetrating essays, Guénon explores their origins, structures, rituals, and symbols—revealing their deeper metaphysical significance and their roles as vehicles of authentic initiation. Far from the modern distortions often associated with these societies, Guénon restores a vision of Freemasonry and the Compagnonnage as inheritors of sacred knowledge and builders of spiritual as well as material forms. He addresses their commonalities, divergences, and their connection to lost traditional sciences, particularly the symbolism of the craft and the geometry of sacred space. Studies on Freemasonry and the Compagnonnage is essential reading for students of esotericism, traditionalism, and sacred architecture—offering a rare glimpse into the inner life of initiatic organizations and the principles they were once meant to preserve. René Guénon (1886–1951) was a pioneering French metaphysician, philosopher, and esotericist whose writings bridged Eastern and Western spiritual traditions. A leading voice in the Traditionalist School, Guénon sought to restore timeless metaphysical principles amid the disorientation of the modern world. His works explore symbolism, initiation, sacred knowledge, and the unity underlying all authentic spiritual paths. After relocating to Egypt in 1930, he embraced Sufism and lived the remainder of his life in Cairo, deepening his engagement with Islamic mysticism. Today, Guénon remains a key influence on scholars, seekers, and spiritual thinkers worldwide.