This text brings together established and emerging scholars (including graduate students) from multiple disciplines (primarily law and social sciences), frontline organizations working in the area of harm reduction, and persons with lived experience of substance use and harm reduction. As a result, the chapters are written from a range of different disciplines, and share best practices from the harm reduction responses to different substances from Canada and elsewhere in the world. Developing a shared understanding of harm reduction, and in turn a deeper appreciation of how harm reduction...