...an excellent and enjoyable piece of philosophy, as one gets to see a single problem attacked from many distinct and compelling perspectives. If interested in the metaphysics of the quantum wavefunction, then this collection is a great choice. * Craig Callender, British Journal of the Philosophy of Science * The essays target an audience of philosophers in science, but the book is also benecial for theoretical physicists. The book can be highly recommended for reader who are looking at the foundations of quantum theory. The book also provides a rich source of references also from a historical point of view. * Willi-Hans Steeb, Zentralblatt Math * ... the book is an excellent and enjoyable piece of philosophy, as one gets to see a single problem attacked from many distinct and compelling perspectives. If interested in the metaphysics of the quantum wavefunction, then this collection is a great choice. * Craig Callender, The British Journal for the Philosophy of Science *