I have no doubt that this volume will be a valuable contribution to the current literature on the topic. All chapters are refreshingly original, and they offer surprising connections between vagueness as a semantic phenomenon and other seemingly unrelated problems in game theory, Bayesian epistemology or social choice theory. As a result, the reader is able to acquire a broad understanding of the problem, as well as a sense of its pervasiveness.  The book also exhibits a delicate balance between conceptual and experimental approaches to vagueness. It is highly recommended to scholars and graduate students working on epistemology, philosophy of language, cognitive psychology, or linguistics. Eleonora Cresto, CONICET, Buenos Aires, Argentina