Communication Yearbook 40 completes four decades of publishing state-of-the-discipline literature reviews and essays. In the final Communication Yearbook volume, editor Elisia L. Cohen includes chapters representing international and interdisciplinary scholarship, demonstrating the broad global interests of the International Communication Association. The contents include summaries of communication research programs that represent the most innovative work currently. Emphasizing timely disciplinary concerns and enduring theoretical questions, this volume will be valuable to scholars throughout the communication discipline and beyond.