This book delves into the dynamic field of start-up and entrepreneurial communication, addressing a significant research gap. Start-up and entrepreneurial communication is a critical practice for organizations in their early stages of development. Characterized by their innovative and growth-oriented nature, these organizations often find themselves in a constant state of re-evaluation and reinvention. As such, the competencies within these organizations frequently struggle to match the real-time changes. Addressing this gap, this book provides scientifically sound answers to defining and systematizing start-up and entrepreneurial communication. It delves into central areas of discourse, exploring the intricate balance between a start-up’s brand, identity, and strategic communication, as well as the crucial role of internal communication. Additionally, the book offers insights into the highly innovative realm of crowdfunding, complementing its comprehensive exploration of start-up communication. This volume will be a key resource for scholars, students and practitioners in the emerging field of entrepreneurial and start-up communication. It was originally published as a special issue of the International Journal of Strategic Communication.