In the first book-length taxonomy of temporal frames of reference, Vyvyan Evans provides an overview of the role of space in structuring human representations of time. Challenging the assumption that time is straightforwardly structured in terms of space, he shows that while space is important for temporal representation, time is nevertheless separate and distinguishable from it. Evans argues for three distinct temporal frames of reference in language and cognition and evaluates the nature of temporal reference from a cross-linguistic perspective. His central thesis is that the hallmark of temporal reference is transience, a property unique to the domain of time.