The third edition of this text maintains its place as a key resource for learning the foundational and emerging theories in the field of interpersonal communication.With each chapter devoted to a specific theory and authored by experts in that theory, the book gives students and scholars a comprehensive overview of this field. This edition features an expanded discussion of theory development and evaluation, a new section on theories of identity and difference in close relationships, and increased attention to social media.With the theory chapters sharing the same structure, the book ensures consistent coverage of topics within each theory.This book is an essential text for advanced undergraduate and graduate courses in interpersonal communication and is a valued resource for scholars.