Artificial intelligence and machine learning are reshaping our world. This book draws on more than 100 interviews with scientists and practitioners to investigate how experts in the field communicate their work, including how they define terms, work in teams, share their research, and think of ethics. It showcases the expertise from practitioners, centering their voices and quoting them directly. It tells the stories of the culture around these disruptive technologies. Most books on AI and ML focus on either the technical aspects or the societal impact of these technologies. Gallagher instead focuses on communication, including the problem of hype and the difficulty of communicating advanced ideas. Whereas other titles try to explain what AI is, this book focuses on who makes artificial intelligence, their rhetorical strategies, and the everyday communication practices that shape these technologies.