This is a study of the nature of time. In it, redeploying an argument first presented by McTaggart, the author argues that although time itself is real, tense is not. He accounts for the appearance of the reality of tense - our sense of the passage of time, and the fact that our experience occurs in the present - by showing how time is indispensable as a condition of action. Time itself is further analysed, and Dr Mellor gives answers to most of the metaphysical questions it provokes, concerning the relation of time to space, the dissection of time, and its relation to change and causation. This 1987 paperback book is in fair condition. There are some very minor scratches and marks to the back of the cover and very minor dogging to the bottom of the front cover and to its corners and to some of front and back pages from how the book has been stored. The spine has not been cracked. There are some line marks to the page block, only visible when the book is closed, and the 203 pages themselves are clean apart from a dedication, that looks like it is written in pencil, on the top of the front inside cover page that reads "Iain B. Monmouth. March 2006". These issues are reflected in the price with similar secondhand copies starting on AbeBooks at over £25 plus postage and on Amazon at over £36 plus postage.