Born and raised in France, Matthieu Daum lived in Israel on a kibbutz, in England where he worked as a psychiatric nurse and a psychotherapist, before starting a career as an international organisational development consultant, working with multinationals, publci sector companies, NGOs, and religious congregations.Specialised in systemic approaches to organisational development (the Tavistock's Group Relations model, Theory U, etc.), Matthieu developed his own approach to accompagnying organisational regeneration, which he has applied with over a hundred clients around the world, and taught in business schools and universities.