<p>In a career that spans 60 years so far W.W. Tait has made many highly influential contributions to logic the philosophy of mathematics and their history. The present collection of new essays &ndash; contributed by former students colleagues and friends &ndash; is a <em>Festschrift</em> i.e. a celebration of his life and work. The essays address a variety of themes prominent in his work or related to it.</p><p>&nbsp;</p><p>The collection starts with an introduction in which Tait&rsquo;s contributions are sketched and put into context. The eleven essays that follow are arranged in three parts: <em>Part I. Proof Theory and its History; Part II. Logic and Philosophy of Mathematics; and Part III. History of Logic and Philosophy of Mathematics</em>. Each of the essays contributes substantially to one or several of these areas.</p><p>&nbsp;</p><p>The authors included are: Steve Awodey Solomon Feferman Michael Friedman Warren Goldfarb Geoffrey Hellman William Howard Stephen Menn Rebecca Morris Charles Parsons Erich Reck Thomas Ricketts and Wilfried Sieg.</p><p>&nbsp;</p><p>The editor Erich H. Reck is Professor of Philosophy at the University of California at Riverside.</p>