Despite the resurgence of interest in the philosophy of John Dewey, his work on logical theory has received relatively little attention. Ironically, Dewey's logic was his "first and last love." The essays in this collection pay tribute to that love by addressing Dewey's philosophy of logic, from his work at the beginning of the twentieth century to the culmination of his logical thought in the 1938 volume, Logic: The Theory of Inquiry. All the essays are original to this volume and are written by leading Dewey scholars. Ranging from discussions of propositional theory to logic's social and ethical implications, these essays clarify often misunderstood or misrepresented aspects of Dewey's work, while emphasizing the seminal role of logic to Dewey's philosophical endeavors. This collection breaks new ground in its relevance to contemporary philosophy of logic and epistemology and pays special attention to applications in ethics and moral philosophy.