The Lord of The Rings, by J. R. R. Tolkien, involves many characters with a common goal: the destruction of the Ring of Power. They connect with each other through their individual journeys and become friends.

This book analyses how friendship in Tolkien's seminal work collaborates in the development of the characters, as well as contributing to the success of their final goal.

Using Aristotle's Nicomachean Ethics and Thomas Aquinas' Summa Theologica as a reading lens for Tolkien's book, the work also considers Peter Jackson's movie adaptations and their reading of the connection between the characters. Cristina Casagrande's comparative analysis brings together different elements to the study of friendship in Tolkien's narrative, contributing to the development of the reader's and viewer's own ethical thinking and character.