The works of the Catalan poet, alchemist, logician and theologian Ramon Llull are an example of the philosophical literature of the early Renaissance, in which the beauty of words and the depth of thought appear before the reader in perfect balance. Llull's truly religious and utopian worldview is expressed in his active desire to transform reality through the power of his texts, to reform the political, ecclesiastical and military structures of his time. The articles and comments included in the Appendices will help the reader better understand the mysterious world created by the greatest mind of the Catalan Renaissance. For a wide range of readers.