Contents : Bryan Magee: Placing Popper – Troels Eggers Hansen: Popper’s Early Work on the Theory of Knowledge – Hubert Kiesewetter: The Birth of Karl Popper’s ‘The Open Society and Its Enemies’ – Erich Kadlec: Popper’s «Negative Utilitarianism» - From Utopia to Reality – Peter Markl: «Poppers Path from Evolutionary Biology to his late Evolutionary Thinking» – Gerhard Budin: Popper’s Theory of Objective Knowledge and Its Relevance in Modern Knowledge Society.