Timelines is an inquiry into the nature of time, both as an apparent feature of the external physical world and as a fundamental feature of our experience of ourselves in the world. The organization of this book makes it easy to consider a single topic or to read straight through, starting with introductory content and running through rigorous treatments of current research and controversy in philosophy and science.

Its format is unique, where each topic is covered by one page of 'front notes' and a facing page of analysis, defense and commentary. Facing pages consist of short essays and citations as well as compact verse compositions that are intended to capture aspects of our temporal experience that are difficult to address with normal descriptive sentences.

The principal argument of Timelines is that our coventional ideas about time are largely mistaken and that what we think of as independent physical time is actually our calibration of a certain relation between events. Namely, the relation between time-keeping events and the causal sequential differences of physical processes which are real and independent of us.

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