This book is about empowering ordinary people to make a difference in the world. It explores the transformation that emerges when groups spread around the world working on similar issues discover synchronicities, often cross-pollinating, and collaborate rather than compete. A Collaboratory is a facilitated space where stakeholders meet to discuss burning societal issues. Each collaboratory is different and needs to be carefully designed to fit the context, ambition, purpose, stakeholders, culture, and space. Part 1 of the book sets the stage by explaining what a collaboratory is, where it emerges from, how it is defined and how it fits into the larger context of the social lab revolution that is happening all over the world. Part 2 of the book unpacks the many dimensions and considerations that contribute to the magic of a collaboratory experience. We offer nine unique insights and perspectives that need to be considered and form an integral part of a successful collaboratory. Part 3 offers eight inspiring examples of how a collaboratory could be applied. We look at applications in the educational field, within organizations, among institutions, and as movements. Part 4 offers a pragmatic outlook on how to get started if you want to use the Collaboratory in your own field of work. The book offers a narrative roadmap using a real-life example of a co-designed and co-created Collaboratory in Norway. Offering practical recommendations and benefits, and bringing together insights from a range of experienced academics, practitioners and facilitators, The Collaboratory is a handbook for experienced or aspiring practitioners in all fields of change: in society, in organizations of all kind and in the field of education.