Gottfried Wilhelm Leibniz (1646-1716) was one of the seventeenth century's most important thinkers. A philosopher, mathematician and scientist, his work is comparable in scope and importance only to that of Newton and Descartes. His work dominated German philosophy until Kant, and was revived in the early part of this century when his important work on logic was re-discovered. This four volume set contains 97 of the most important essays ever written about Leibniz's work. The selection has been made to bring out the scope of Leibniz's work in all the areas he wrote upon, as well as its importance to contemporary philosophy and the history of philosophy. It will be an essential reference work for anyone concerned with seventeenth century philosophy and science, as well as to all Leibniz specialists.