The questions of metaphysics are among the deepest and most puzzling. What is time? Am I free in my actions? What makes me the same person I was as a child? Why

Riddles of Existence makes metaphysics genuinely accessible, even fun. Its lively, informal style brings the riddles to life and shows how stimulating they can

Theodore Sider presents a broad new vision of metaphysics centred on the idea of structure. To describe the world well we must use concepts that 'carve at the j

Four-Dimensionalism defends the thesis that the material world is composed of temporal as well as spatial parts. This defense includes a novel account of persis

Metaphysics has shifted ground, moving away from necessity and possibility as the lens through which we look at things. Ted Sider shapes the agenda for the subj