Avrum Stroll is Research Professor of Philosophy at the University of California, San Diego. A distinguished philosopher and a noted scholar in the fields of epistemology, philosophy of language, and twentieth-century analytic philosophy, he is the author of many books, most recently Surfaces, Moore and Wittgenstein on Certainty, and Sketches of Landscapes: Philosophy by Example.Analytic philosophy is difficult to define since it is not so much a specific doctrine as a loose concatenation of approaches to problems. As well as having strong ties to scientism -the notion that only the methods of the natural sciences give rise to knowledge -it also has humanistic ties to the great thinkers and philosophical problems of the past. Moreover, no single feature characterizes the activities of analytic philosophers. Undaunted by these difficulties, Avrum Stroll investigates the "family resemblances" between that impressive breed of thinkers known as analytic philosophers. In so doing, he grapples with the point and purpose of doing philosophy: What is philosophy? What are its tasks? What kind of information, illumination, and understanding is it supposed to provide if it is not one of the natural sciences? Imbued with clarity, liveliness, and philosophical sophistication, Stroll´s book presents a synoptic picture of the main developments in logic, philosophy of language, epistemology, and metaphysics in the past century. It does this by concentrating on the individual thinkers whose ideas have been most influential. Major themes in Twentieth-Century Analytic Philosophy include: · the innovation of mathematical logic by Gottlob Frege at the close of the nineteenth century and its independent development by Bertrand Russell; · the impact of advancements in science on the world of philosophy and its importance for understanding such doctrines as logical positivism, philosophy of language, philosophy of mind, and elilÓ8