Book excerpt: Debunking the spurious reputations of some, detailing the authenticity of others, The International Encyclopedia of Secret Societies and Fraternal Orders contains over 800 A-to-Z entries describing the names, natures, and purposes of secret societies throughout history and around the world. An extensive introduction gives readers a solid overview of the evolution of secret societies from their ancient roots, typologies of secret societies - how and why they specialized, why schisms and splinter groups are almost inevitable, how brotherhoods often formed around one charismatic personality, and why memberships are now declining. Further, The International Encyclopedia of Secret Societies and Fraternal Orders has a comprehensive bibliography, an index, and includes the addresses of secret societies in existence today.