Contents: The Concept of Spacetime: The philosophy of space and time, John D. Norton; Space-time or how to solve philosophical problems and dissolve philosophical muddles without really trying, John Earman. Spacetime Structure: Newtonian space-time, Howard Stein; Who's afraid of absolute space?, John Earman; Relational concepts of space and time, Julian B. Barbour; There's a hole and a bucket, dear Leibniz, Mark Wilson; Correspondence, invariance and heuristics in the emergence of special relativity, Harvey R. Brown; On relativity theory and the openness of the future, Howard Stein. Substantivalism: Buckets of water and waves of space: why spacetime is probably a substance, Tim Maudlin; The hole argument, John Norton; Albert Einstein meets David Lewis, Jeremy Butterfield; The essence of space-time, Tim Maudlin. Conventionalism: Weyl, Reichenbach and the epistemology of geometry, T.A.

Ryckman; Causal theories of time and the conventionality of simultaneity, David Malament; Discussion: a modest remark about Reichenbach, rotation and general relativity, David Malament; Topology, cosmology and convention, Clark Glymour; The epistemology of geometry, Clark Glymour. Foundations of General Relativity: What is a singularity in general relativity?, Robert Geroch; Singularities of spacetime, Roger Penrose; Cosmic censorship, John Earman; Outlawing time machines: chronology protection theorems, John Earman; Predicting the future in relativistic spacetimes, Mark Hogarth.