Walter Stahel is a Swiss architect that has a great influence in developing the field of sustainability, by advocating ‘service-life extension of goods—reuse, repair, remanufacture, and technological upgrade’ philosophies as they apply to industrialized economies. Stahel’s ideas led to what is now known as the circular economy in which industry adopts the reuse and service-life extension of goods as a strategy of waste prevention, regional job creation, and resource efficiency.