Power Lessons – Christianity in The Lord of the Rings is a work that answers one of the great doubts of many Christians regarding fantasy books: is it possible to learn biblical principles through them? What many readers do not know is the intense relationship of the author of The Lord of the Rings, J.R.R Tolkien (1892-1973), with the Christian faith and, consequently, the use of various symbols and elements of Christianity in the incredible universe created by him. , who is one of the most influential authors of all time. Authors Vinicius A. Miranda and Rafael Soares, the latter one of the leading specialists in Tolkien in Brazil, follow this trail from their best-known work, which originated the most awarded trilogy in the history of cinema, The Lord of the Rings. Written for an engaging, comprehensive and full of surprises for fans of Tolkien's stories, readers will be put in context of how the Christian faith shaped his trajectory, as well as the books he wrote. In this way, it will be possible to learn how Christian values, but also sin and evil are portrayed in Tolkien's work, and the main biblical inspirations that appear in The Lord of the Rings.