Italian translation of the third edition of the practical, step-by-step user’s guide written by Harrison Owen which details what needs to be done before, during, and after an Open Space event.The second edition created 11 years ago has been sold more than 20 000 times. This is the standard reference book for practitioner of Open Space Technology, useful for facilitators, sponsors of Open Space events and participants that want to explore the nuts and bolts of Open Space Technology.