"Liber OZ", also known as "Book 77", "The Book of the Goat", and "The Rights of Man" is a single-page declaration authored by the English occultist Aleister Crowley in 1941. This text, initially published as a leaflet or broadside, delineates the fundamental rights of individuals as viewed through the lens of Thelema, the spiritual and social movement which Crowley founded in the early 20th century. Thelema emphasizes the principle of individual will as its core tenet.