Embark on a riveting journey through the study of social complexity with The Atlas of Social Complexity. Over three decades of scientific exploration unfold, unravelling the enigmatic threads that compose the fabric of society. From the dance of bacteria, to human-machine interactions, to the ever-shifting dynamics of power in social networks, this Atlas maps the evolution of our understanding of social complexity.Brian Castellani's and Lasse Gerrits' Atlas is not merely retrospective. It is a compass pointing to uncharted territories: new directions for research and intellectual debate. With wit and insight, they invite the reader to ponder unanswered questions, taking them on a quest for alternative ways to understand the intricate complexities of societies.The Atlas of Social Complexity is a thrilling expedition into the heart of what makes us human: from cognition, emotion, consciousness, the dynamics of human psychology, to social networks, collective behaviour, politics and governance, technology and planning, and the practice of social interventions. The Atlas also visits cross-cutting themes such as intersectionality, configurational complexity, and research methods.Organised around six transdisciplinary themes and twenty-four topics the Atlas is an invaluable resource for all social science and complexity science scholars and students interested in new ideas and new ways of working in social complexity. It paves the way for the next generation of research in the study of social complexity.