Our societies are becoming more complex, dynamic, and networked every day. Public organizations and companies alike are learning the hard way that the societal challenges before us cannot be resolved as they were in the past. We need new approaches to these problems. Over the past ten years, an increasing number of government organizations, companies, and individuals have realized that special practices from design can help us rise to the challenge. At the core of this book are twenty case studies from around the world that demonstrate how design approaches can be used for societal change. These extensive case descriptions are interspersed with reflections, lessons learned, and tricks and tips for the practitioner, culminating in a vision of how design can revolutionize society.