The Builders is a source book of Masonic origins, history and philosophy. Until this day it is regarded as one of the best books on the topic.The author illuminates the historical precedents of the group, beginning with ancient Egypt. He covers the ancient mystery religions, and the true origin of Masonry in organizations of medieval stone-masons. Masonry, which had started as an underground association of building trade workers, evolved into a fraternal group which included both members of the English royal family and American revolutionaries. Arguably, the author claims that the world has benefited greatly because of the Masonic ideals of liberty, fraternity and equality.