This document is the first chapter of a textbook on business communication. It discusses the importance of communication for careers and companies in today's digital, social, and mobile world. Effective business communication provides practical information concisely, offers persuasive arguments, and adopts an audience-centered approach. New communication technologies are changing practices by enabling constant connectivity through mobile devices. While technology can help accomplish tasks and support relationships, it cannot replace interpersonal skills or solve problems alone. The chapter emphasizes communicating ethically and legally in both digital and in-person interactions.