Book excerpt: Defining Sport Communication is a comprehensive resource addressing core topics and issues, including humanistic, organizational, relational, and mediated approaches to the study of sport communication. It provides foundational work in sport communication for students and scholars, reflecting the abundance of research published in recent years and the ever-increasing interest in this area of study. Bringing together scholars from various epistemological viewpoints within communication, this volume provides a unique opportunity for defining the breadth and depth of sport communication research. It will serve as a seminal reference for existing scholarship while also providing an agenda for future research.