Graham Nerlich is one of the most distinguished contemporary philosophers of space and time. What spacetime explains brings together eleven of his essays in a single carefully structured volume, dealing with ontology and methodology in relativity; variable curvature and general relativity; and time and causation. These essays argue that space and time are comprised in spacetime, that spacetime is real, and that its structure forms a main part of the apparatus of the explanation of science. Professor Nerlich provides a general introduction to his collection and also introductions to each part to bring the discussion up to date and to draw out the general themes. What spacetime explains will be welcomed by all philosophers of physics and of science in general.