The book, for the first time in new Russia, brings together data on the origin of Orthodoxy, historical information about all Orthodox churches in the world, presents all the great church holidays, brief biographical information about evangelists, about the most prominent Russian saints, about all Russian patriarchs. Placed information about the largest churches, about miraculous icons, about church rites and much more. The book is designed for all interested in Orthodoxy, its role in the formation and development of Russia.