The book "Principles of Masonic Law: A Treatise on the Constitutional Laws, Customs, and National Features of Freemasonry" by the famous American Freemason and jurist Albert Gallatin Mackey examines the main aspects of the legal norms governing the activities of the Masonic brotherhood. The author examines in detail the constitutional laws, traditions and norms that form the basis of Masonic culture, noting the importance of preserving these principles to ensure the unity and strength of the community. This book is an essential resource for Masons interested in a deeper understanding of the philosophy and history of the great show.