This edited book delves into important current issues and trends in internal communication from a strategic communication perspective. It presents recent research findings, theories, best practices, and cases in internal communication on a global scale. The book discusses emerging and important long-standing issues in-depth, including topics such as employee advocacy, internal social media, internal issue management and crisis communication, employee activism, purposeful communication, leadership communication, internal CSR communication, cross-cultural/global internal communications, internal communication, and employee well-being. Within these topics, the chapters address the function of internal communications in contemporary times, the role of leaders, how to integrate emerging technologies, building an internal brand, and measuring the effectiveness of internal communication. This book will be a comprehensive source on internal communication, especially on its new theoretical development related to the emerging issues and trends, best practices, and future directions for research and practice.