The old philosophical discipline of metaphysics after having been pronounced dead by many has enjoyed a significant revival within the last thirty years, due to the application of the methods of analytic philosophy. One of the major contributors to this revival is the outstanding American metaphysician Peter van Inwagen. This volume brings together twenty-two scholars, who, in commemoration of Prof. van Inwagen's 75th birthday, ponder the future prospects of metaphysics in all the richness to which it has now returned. It is only natural that logical and epistemological reflections on the significance of metaphysics sometimes called meta-metaphysics play a considerable role in most of these papers. The volume is further enriched by an interview with Peter van Inwagen himself.