The volume contains studies on Ramon Llull (1232-1316) in a variety of different languages. They are the fruit of a symposium organized by German and Spanish foundations and reflect the main lines of present-day research on the philosophical roots of Llull's "art of finding the truth", his relations to Judaism and Islam, his influence on Nicholas of Cusa and his personality as an author of literary works. In addition various other aspects of "Lullism" are dealt with which cast light on the overall achievement of the Catalan philosopher and convey a vivid impression of his extraordinarily dynamic personality.