It is a widespread prejudice of modern, scientific society that magic is merely a ludicrous amalgam of recipes and methods derived from primitive and erroneous notions about nature. Eros and Magic in the Renaissance challenges this view, providing an in-depth scholarly explanation of the workings of magic and showing that magic continues to exist in an altered form even today. Renaissance magic, according to Ioan Couliano, was a scientifically plausible attempt to manipulate individuals and groups based on a knowledge of motivations, particularly motivations. Its key principle was that everyone (and in a sense everything) could be influenced by appeal to sexual desire.