Lived and living experience refers to knowledge developed through direct experience of a situation or life journey, either personally or as someone close to a person with that experience (for example, psychoactive substance use, mental health, homelessness, involvement with the justice system, sex work, etc.). Recognized as a form of knowledge in its own right, lived and living experience complements scientific, clinical, and professional knowledge and contributes to the development of research projects, services, and policies that are better adapted to the realities of the people concerned. Lived and living experience refers to knowledge gained through direct experience, either personally or as someone close to a person with that experience. By joining the Exprimer l’invisible network, you can receive information about opportunities to participate in projects based on your interests and availability. There is no obligation to accept any of the invitations you receive. Most activities involving people with lived and living experience are compensated. Compensation and terms vary depending on the project.