This introduction to metaphysics is tied together by the idea of time. It explores ideas such as whether there was a beginning of time and the possibility of an infinite past and an eternal future. It looks at what happens when things change, and what affect that has on us and our personal identity. The book also asks if we can be free and what is the relationship of human freedom to various theories of divine foreknowledge and determinism? The final part of the book brings students up to date with theories of relativity and contemporary cosmology about time and the universe.