Contrary to the popular "lone genius" image of innovation, we know that the actual work of innovation is a collective activity. A focus on this work demonstrates three aspects of organization that are key to understanding innovation: community, practice, and materiality. Community membership structures people's learning in organizations, and boundaries between communities can therefore be both barriers to and opportunities for innovation. Everyday work practices create organizational cultures that enable collective creativity, rapid coordination, and recovery from surprises. Finally, the materiality of the workplace can facilitate problem-solving, communication, and symbolic support for innovation.