Jurgen Lawrenz has a PhD degree in Philosophy, achieving his doctorate at Sydney University with a pioneering thesis on the German philosopher Leibniz. He is the author of four books and many articles; a contributor to the popular Pathways to Philosophy (Sheffield); and was for several years involved with PhiloCafe in Leichhardt. In addition to philosophy, his interests extend into history, literature, art, music, biology and the writing systems of the world.