3. Organize the session

The material conditions are very important: provide a well-lit room, large enough for people to move around in, equipped with one or two flipcharts, with the possibility of displaying sheets of paper. Tables are not essential; you can arrange chairs in a semicircle around the board. Don't forget your materials: check paper refills, bring felt-tip pens in different colors, tape, white paper, Post-it® notes.

Duration: allow a minimum of 1 hr 30 min, or more reasonably 2 hours; ideally, you should devote a morning or afternoon to the session.

Don't forget the conviviality: welcome coffee, cookies, sweets... If you want to do things right, you can decorate the room with images or objects linked to the world of the subject in question.