Digital assistants, brain-computer interfaces, collaborative robots, machine-learning applications and all sorts of other user interfaces: we will interact with technology ever more pervasively in the future. But we won’t just be interacting, we’ll be cooperating. Cooperation, i.e. purpose-driven collaboration toward common goals, is an essential characteristic of collaborative work. While we mainly think of cooperation as a human behavior, we’ve always used technology to extend it: from the first telephones to modern online collaboration tools. Cooperative Work: Of Humans and Machines addresses the question of how technological innovations are changing our view of cooperative work: Is there real cooperation between humans and machines, or do they remain tools used to serve our needs? Who determines these needs? What areas of decision-making should be reserved for humans?’