Participatory research is now well-established as an approach; however, it can raise some unique and challenging ethical issues. This book introduces the key ethical concerns in participatory research before presenting seven thematic chapters, covering issues such as power, ownership, confidentiality and boundaries. The chapters each give an overview of the topic and include four real-life case examples written by people involved in participatory research along with a short commentary on each case. The case studies draw on a global selection of research projects concerned with health and social well-being. This comprehensive volume is an invaluable resource for all participatory researchers.