The book "Collective Agency and Cooperation in Natural and Artificial Systems" offers an interdisciplinary perspective on the concepts of cooperation and collective action. It combines philosophical approaches with current research on human-machine interaction from the fields of engineering, robotics, computer science, and artificial intelligence. By connecting these previously largely separate research areas, it fosters a deeper understanding of collective agency in natural and artificial systems. This contributes to the improvement of the design and performance of hybrid systems that involve both human and artificial agents. Additionally, the modeling of collective agency through computer simulations provides philosophical insights into its emergence.